Cross-Cultural Examination of Links between Parent–Adolescent Communication and Adolescent Psychological Problems in 12 Cultural Groups

Internalizing and externalizing problems increase during adolescence. However, these problems may be mitigated by adequate parenting, including effective parent–adolescent communication. The ways in which parent-driven (i.e., parent behavior control and solicitation) and adolescent-driven (i.e., disclosure and secrecy) communication efforts are linked to adolescent psychological problems universally and cross-culturally is a question that needs more empirical investigation. The current study used a sample of 1087 adolescents (M = 13.19 years, SD = 0.90, 50% girls) from 12 cultural groups in nine countries including China, Colombia, Italy, Jordan, Kenya, Philippines, Sweden, Thailand, and the United States to test the cultural moderation of links between parent solicitation, parent behavior control, adolescent disclosure, and adolescent secrecy with adolescent internalizing and externalizing problems. The results indicate that adolescent-driven communication, and secrecy in particular, is intertwined with adolescents’ externalizing problems across all cultures, and intertwined with internalizing problems in specific cultural contexts. Moreover, parent-driven communication efforts were predicted by adolescent disclosure in all cultures. Overall, the findings suggest that adolescent-driven communication efforts, and adolescent secrecy in particular, are important predictors of adolescent psychological problems as well as facilitators of parent–adolescent communication.


Parenting Adolescents
Parents shape their adolescents' development through their own parenting practices (Darling and Steinberg 1993;Soenens et al. 2019). Such practices include parent-driven communication strategies such as parent solicitation and behavioral control (Dishion and McMahon 1998). Parents can obtain information about adolescents' everyday lives by initiating conversation with their adolescent, by asking questions to adolescents themselves, or by talking to their adolescents' friends and parents of their friends (parent solicitation; Bornstein et al. 2013). Parents also communicate rules of behavior and control adolescents' freedom to come and go as they please (parent behavior control; Stattin and Kerr 2000). Ideally, asking adolescents for information or communicating rules of behavior should help parents stay involved in their adolescents' lives and help parents protect their adolescents from harm. However, traditional gender roles are often reflected in the interaction between parents and their adolescents, with parents communicating different behavioral expectations for girls and boys (Leaper and Farkas 2015). Indeed, early adolescent girls report higher levels of parent behavior control and solicitation than their male counterparts (Kapetanovic et al. 2017). In addition, studies suggest that parents with higher socioeconomic status, often measured by parent educational level, generally are more supportive and have more knowledge of their adolescents' activities than parents with low socioeconomic status (Morawska et al. 2009). Despite these relative differences in parenting practices with regards to child gender and family socioeconomic status, meta-analyses indicate that parent-driven communication efforts are related to lower levels of internalizing (Pinquart 2017b) and externalizing problems (Pinquart 2017a) regardless of adolescent gender or parent education (Akcinar and Baydar 2014). Importantly, however, some studies have suggested that parent solicitation may be related to poorer adolescent developmental outcomes, including internalizing (Hessel et al. 2017) and externalizing problems (Garthe et al. 2015), because such parenting practices relate to perceived privacy invasions in adolescents (Hawk et al. 2008) and feelings of being overly controlled by parents (Kapetanovic et al. 2017), particularly in boys (Hawk et al. 2008). Therefore, parental active efforts of communication could be protective against the development of adolescent psychological problems, but only if adolescents do not perceive them as intrusive.
information. Two decades ago, Stattin and Kerr (2000) (see also Kerr and Stattin 2000) called for a reconceptualization of parental communication and monitoring efforts, bringing attention to the agency of the child in the parent-adolescent relationship. They suggested that parents mainly obtain knowledge of their adolescents' whereabouts through adolescents' own sharing or disclosure of information. Early adolescent girls generally seem to share more information with their parents than boys (Kapetanovic et al. 2017), although a vast literature indicates that adolescent disclosure is the strongest predictor of parental knowledge of an adolescent's activities regardless of adolescent gender (Keijsers et al. 2010a). In addition, studies indicate that adolescent disclosure is an important aspect of the parent-adolescent relationship (Tilton-Weaver 2014) which in turn is associated with less engagement in problem behaviors such as delinquency (Kapetanovic et al. 2019a), substance use (Kapetanovic et al. 2019b), and internalizing (Hamza and Willoughby 2011) and externalizing problems (Racz and McMahon 2011). Importantly, adolescent disclosure demonstrates these unique protective effects even after parents' own communication strategies are statistically controlled (Kerr et al. 2010). When adolescents share information, parents become more knowledgeable of adolescent whereabouts and could be provided with more opportunities to give guidance and support without being intrusive. As a result, adolescents could be protected from development of psychological problems.
Adolescents can also manage information by withholding it from their parents. As adolescents become more autonomous and independent from their parents, they utilize the secrecy communication strategy to choose what to divulge to their parents and what information to withhold. Adolescents withhold information and keep secrets from parents for several reasons, including avoiding disapproval, gaining a sense of autonomy (Marshall et al. 2005), or protecting their privacy (Rote and Smetana 2016). Particularly boys seem to increase their secrecy toward parents over the course of early to mid-adolescence (Keijsers et al. 2010b). Although secrecy may be a normative process in adolescent development, empirical research consistently shows that secrecy is psychologically disadvantageous to adolescent development (Finkenauer et al. 2002) and is associated with higher levels of internalizing and externalizing behaviors over time (Frijns et al. 2010). It is possible that adolescents who withhold information from parents are less likely to receive guidance and support from their parents and could therefore experience poorer psychosocial development.

Adolescents Influence Parents
Adolescents cannot be seen as a separate entity from the contexts they live in, but instead must be viewed as active agents who interact with all levels of their developing contextual system (Sameroff 2010). Applied to parent-adolescent communication patterns, this means that parents and adolescents both demonstrate agency in shaping their mutual communication patterns, and actively influence each other (Kuczynski and De Mol 2015). In line with such reasoning, developmental scientists have shown that parents adapt their communication strategies as a result of adolescents' behavior (Lansford et al. 2018b).
Specifically, during the last decade, many studies have tested unidirectional associations between parent-adolescent communication and adolescent adjustment. However, only a few studies have examined reciprocal associations between parent-driven communication efforts (i.e., parent solicitation and control) and adolescent adjustment (i.e., externalizing and internalizing problems) and between adolescent-driven communication efforts (i.e., adolescent disclosure and secrecy) and adolescent adjustment (i.e., externalizing and internalizing problems). These bodies of work have produced inconsistent results. Some studies that investigate parent communication efforts show that parent communication efforts unidirectionally predict, but are not predicted by, adolescent adjustment (Kerr et al. 2010). However, other studies suggest that parent communication efforts are reciprocally linked with adolescent internalizing and externalizing behaviors such that parental efforts predict adolescent behavior and vice versa (Hamza and Willoughby 2011). Some studies that investigate adolescent communication efforts indicate that adolescent secrecy unidirectionally predicts adolescent internalizing problems (Frijns et al. 2010), whereas in others adolescent disclosure predicts and is predicted by adolescent internalizing problems (Hamza and Willoughby 2011). Studies simultaneously investigating links between parents' communication efforts and adolescents' communication efforts are scarce. However there are indications that adolescent secrecy and parent solicitation are positively linked concurrently, yet not longitudinally (Villalobos Solíss et al. 2015). Thus, though reciprocal associations among parent communication efforts, adolescent communication efforts, and adolescent behavioral adjustment have been proposed in theoretical conceptualizations, reciprocal associations among all three constructs have not previously been tested together in one model. Doing so might resolve inconsistencies in the parent communication-adolescent adjustment and adolescent communication-adolescent adjustment literatures by identifying exactly which parent-and adolescent-driven communication patterns are uniquely associated with adolescent adjustment over time.

Are Links between Parent-Adolescent Communication and Adolescent Development Similar across Cultures?
Parent-adolescent interactions may be influenced by their cultural context (Bornstein et al. 2011). Behavior of individuals or a group of people cannot be separated from the social context in which they live (Sameroff 2010). Accordingly, parents' values and beliefs are embedded within their specific social context, such as the community or culture. Specifically, some cultures' norms allow adolescents greater agency in communicating with their parents and shaping parent-adolescent relationships, whereas others emphasize adolescents' obedience and restrict adolescents' agency to shape such relationships (Smetana 2017). For example, parents in Jordan and Sweden hold parenting views that encourage adolescent autonomy, but parenting in China and Kenya is characterized by more authoritarian styles that accord adolescents less autonomy (Putnick et al. 2012). The use of specific parenting practices may vary across cultures, but their effect on adolescent adjustment may or may not differ across cultures (Bornstein 2012).
In what ways are parent and adolescent communication efforts linked to adolescent adjustment across cultures? Given differences across cultures in adolescent agency, it is possible that parent-adolescent communication efforts are differentially associated with one another and with adolescent functioning in different cultures. Another possibility is that parent-adolescent communication efforts are universally linked with one another and with adolescent functioning. Current research, however, has not investigated the moderating effects of culture on these associations. To date, research linking adolescent functioning with both parents' and adolescents' communication efforts is mostly conducted within European American and European samples (Smetana 2008). One exception included Palestinian refugee youth in Jordan and showed that adolescent disclosure and secrecy were associated with norm breaking behaviors and internalizing problems, but only when mothers were high in behavior control (Ahmad et al. 2015). Another exception, including non-Latino White and Latino adolescents in the United States, showed that adolescent disclosure was negatively associated with adolescent depressive symptoms whereas parent solicitation was positively associated with adolescent depressive symptoms over time and across ethnicity (Fernandez et al. 2018). Although these findings are important first steps, more culturally inclusive research is needed to understand the links between parent-adolescent communication efforts and adolescent adjustment. To fill this knowledge gap, the current study utilizes longitudinal samples of adolescents in 12 cultural groups in nine countries to examine how bidirectional associations among parent-communication, adolescent-communication, and adolescent adjustment vary across culture. Understanding similarities and differences across cultures in bidirectional communication patterns could aid in the identification of culture-specific targets for preventing and intervening to mitigate adolescents' internalizing and externalizing problems.

Current Study
The current study examines associations among parental communication efforts (i.e., solicitation and behavior control) and adolescent communication efforts (i.e., adolescent disclosure and secrecy) and adolescent psychological problems (i.e., internalizing and externalizing problems) in a large multicultural sample. Because earlier research suggests that parenting practices differ based on adolescent gender (Leaper and Farkas 2015) and parent socioeconomic status, including education level (Morawska et al. 2009), adolescent gender and parent education level were used as covariates in all models. Based on aforementioned unidirectional studies that demonstrate that parent solicitation and behavioral control are protective (e.g., Dishion and McMahon 1998), the first hypothesis was that parent solicitation and behavioral control would be linked to lower levels of adolescent problems over time. In line with the reconceptualization of parent-adolescent communication patterns that emphasized the influence of adolescent information management , the second hypothesis was that adolescent disclosure would be linked to lower levels of adolescent problems over time, whereas adolescent secrecy would be linked to higher levels of adolescent psychological problems over time. Based on the tenet of developmental science that emphasizes bidirectional processes in parent-adolescent interactions (Kuczynski and De Mol 2015) and findings in the previous literature (Kapetanovic et al. 2019a), the third hypothesis was that the links among parent-adolescent communication efforts and adolescent psychological problems would be reciprocal so that (a) adolescent psychological problems would be negatively and reciprocally related to parent solicitation, control, and adolescent disclosure and positively to adolescent secrecy, (b) parent solicitation, control, and adolescent disclosure would be positively and reciprocally related, and (c) parent solicitation, behavioral control, and adolescent disclosure would be negatively and reciprocally associated with adolescent secrecy. Cultural moderation in the links between parent-adolescent communication and adolescent psychological problems will also be tested. However, given the paucity of cross-cultural research in the area, no specific hypotheses regarding moderation by culture were made.

Participants
Participants included 1087 adolescents (M = 13.19 years, SD = 0.90, 50% girls at year 1 (age 13) of two years of data collection (ages 13 and 15)). Families were recruited from 12 distinct ethnic/cultural groups across 9 countries including: Shanghai, China (n = 85); Medellín, Colombia (n = 85); Naples (n = 95) and Rome (n = 99), Italy; Zarqa, Jordan (n = 104); Kisumu, Kenya (n = 90); Manila, Philippines (n = 91); Trollhättan/Vänersborg, Sweden (n = 83); Chiang Mai, Thailand (n = 100); and Durham, NC, United States (n = 93 White, n = 90 Black, n = 72 Latino). Participants were recruited through school letters. Most adolescents had parents who lived together (82%) and were biological parents (97%); nonresidential and non-biological parents also provided data. Sampling included families from each country's majority ethnic group, except in Kenya where Luo (3rd largest ethnic group, 13% of population) was sampled, and in the U.S., where equal proportions of White, Black, and Latino families were sampled. Socioeconomic status and parental education were sampled in proportions representative of each recruitment area. Adolescent age and gender did not vary across countries. Data for the present study were drawn from interviews during both study years (when adolescents were approximately ages 13 and 15). At age 15, 92% (n = 997) of the original sample continued to provide data.

Procedure
Data used in the current study were pulled from a larger longitudinal investigation that also included adolescents' mothers and fathers. However, mother and father reports were not included in the present sample because only adolescents reported on parent-child communication patterns. The study was described to potential participants as a longitudinal study examining parenting and child development, and both parents, in addition to the target child, were invited to participate in the study. Participants were recruited through public and private schools (to increase socioeconomic diversity and representativeness of the sample) in all nine countries. Response rates varied across countries (from 24% to nearly 100%), primarily because of differences in the schools' roles in recruiting. For example, in China, once the schools agreed to participate, the parents agreed to participate as well, and interviews were conducted at the schools, leading to participation rates of nearly 100%. In the United States, after schools agreed to help with recruitment, the interview team was allowed to leave letters explaining the study at the school for teachers to send home with students. If parents were willing to have their family participate, they returned a letter to the school indicating their willingness to participate. The research team then contacted them directly to arrange an interview at a time and place that was convenient for the families. Based on the number of letters that were left at schools for teachers to distribute compared to the number of letters returned by parents, the estimated response rate was 24%. Unfortunately, the estimation of response rates for all sites is not possible because in some cases, there is no record of the number of students who were potentially invited to participate versus those who actually agreed to participate due to the differing ways in which schools informed parents about the study (e.g., paper letters versus email contact or verbal announcement).
Measures were administered in the predominant language of each country, following forward-and backtranslation and meetings to resolve any item-by-item ambiguities in linguistic or semantic content (Erkut 2010). Interviews lasted 2 h in participant-chosen locations and were conducted after parent consent and adolescent assent were given. Data collection at each of the site was led by the site principal investigator and coordinated from the local university where the site principal investigator had a faculty appointment. Interviewers at each cultural site were research assistants (e.g., graduate students, local community members) trained by the principal investigators. Participants were given the choice of completing the measures in writing or orally. Families were given modest monetary compensation for participating or compensated in other ways deemed appropriate by local IRBs.

Demographics
Adolescent biological sex and parent education were included in analyses as covariates. Adolescent biological sex was measured via a binary variable (0 = female, 1 = male) and parent education was calculated as the maximum number of years of education that any parent in the household completed (M = 13.80, SD = 4.13). Average years of parental education ranged across cultures from 10.89 years (in the US Latino sample) to 17.95 years (in the US White sample). Therefore, overall the sample was highschool educated, with some variation across cultures.

Adolescent externalizing and internalizing behavior
Adolescents completed the Youth Self Report Form of the Adolescent Behavior Checklist (Achenbach and Rescorla 2001) to capture their externalizing and internalizing behavior at ages 13 and 15. Adolescents were asked to rate how true each item was during the last six months (0 = not true, 1 = somewhat or sometimes true, 2 = very or often true). The Externalizing Behavior scale summed across 30 items and captured behaviors such as lying, vandalism, bullying, substance use, disobedience, and physical violence. The Internalizing Behavior scale summed across 29 items and measured behaviors and emotions such as loneliness, self-consciousness, nervousness, sadness, and anxiety. The Achenbach measures are among the most widely used instruments in international research, with translations in over 100 languages and strong, welldocumented psychometric properties (e.g., Achenbach and Rescorla 2001). This measure demonstrated adequate reliability across cultures at age 13 (Internalizing α = 0.89; Externalizing α = 0.87) and age 15 (Internalizing α = 0.73; Externalizing α = 0.75) and has demonstrated reliability and validity within all cultural groups in the present sample in past work (Lansford et al. 2018a). Moreover, measurement invariance and consistency of the Youth Self Report factor structure has been demonstrated in numerous cultural groups worldwide, including those examined in the current study (e.g., Yarnell et al. 2013). Higher scores indicated more problematic externalizing/ internalizing behavior.
Parent-adolescent communication: adolescent disclosure, adolescent secrecy, parent behavioral control, parent solicitation Parent-adolescent communication patterns were assessed at ages 13 and 15 by adolescent reports of adolescent disclosure, adolescent secrecy, parent behavior control, and parent solicitation on items from the Youth Knowledge, Disclosure, Control, and Solicitation Scale ; see Supplementary Table 1 for a full list of items). Adolescents were asked how frequently they engaged in disclosure and secrecy, and how often their parents engaged in control and solicitation, on a 0 = Never to 3 = Always scale. Adolescent disclosure was measured by summing three items assessing how often adolescents share information with their parents (e.g., "Do you like to tell your parents where you went and what you did during the evening?"). Adolescent secrecy was measured by summing two items assessing how often adolescents kept secrets from their parents (e.g., "Do you hide a lot from your parents about what you do during nights and weekends?"). Parent solicitation was measured by summing four items assessing how often parents initiate conversation with their adolescent (e.g., "How often do your parents ask you what happened during your free time?"). Parent behavioral control was measured by summing six items assessing how often parents attempted to remain aware, establish clear expectations for, and set limits on adolescent behavior (e.g., "Do your parents require that you tell them how you spend your money?). The Youth Knowledge, Disclosure, Control, and Solicitation Scale has adequate reliability, convergent and discriminant validity, and measurement invariance across a variety of cultures including many of those examined in the current study (e.g., Lionetti et al. 2016;Frijns et al. 2010). Moreover, adolescent disclosure (Age 13 α = 0.72; Age 15 α = 0.72), adolescent secrecy (Age 13 α = 0.63; Age 15 α = 0.69), parent behavioral control (Age 13 α = 0.79; Age 15 α = 0.82), and parent solicitation (Age 13 α = 0.75; Age 15 α = 0.78) each demonstrated reliability in the current study. Higher scores indicate greater adolescent disclosure, adolescent secrecy, parent behavioral control, and parent solicitation.

Analytic Plan
Mplus Version 8 (Muthén and Muthén 1998) was used to evaluate study hypotheses. In the path model, stability paths for each variable from age 13 to age 15 were included (e.g., age-13 adolescent externalizing behavior predicted age-15 adolescent externalizing behavior) and contemporaneous measures were correlated at both study time points (e.g., age-13 adolescent disclosure and age-13 adolescent secrecy were correlated). Additionally, paths from each age-13 measure were fit predicting each age-15 measure. So, for example, paths from age-13 adolescent externalizing behavior, internalizing behavior, disclosure, and secrecy, and from parent behavioral control and solicitation, as well as from adolescent gender and parent education predicted all age-15 variables. Once paths were fit, multiple-group comparisons of the 12 cultural groups were conducted to examine cultural differences. In accordance with prior work (Rothenberg et al. 2019;Muthén and Muthén 1998), all paths were initially constrained to be equal across cultures. Then, paths were iteratively freed to vary across cultures if a χ 2 difference test revealed that the model fit was significantly better when the path was freed. Paths were freed to vary and tested using χ 2 difference tests in the same order in every model. Analyzing the data in this way allowed precise identification of the effects that vary across cultural groups.

Results
The means and standard deviations of all study variables in each culture are shown in Table 1.

Missing Data
At age 15, 92% (n = 997) of the original sample continued to provide data. Attrited participants did not significantly differ from the original sample on parent education,  (1082) = 4.53, p = 0.01) at age 13. Therefore, all age-13 variables were included in all analyses, and full-information maximum likelihood estimation procedures were utilized in all path analyses to account for missing data (Enders 2010).

Fitting Appropriate Path Analytic Model
Skewness and kurtosis estimates for all continuous variables estimated in the models fell in acceptable ranges (skew <2.0, kurtosis < 7.0). Model fit evaluation was based on recommended fit index cut-off values that indicate excellent fit (CFI/TLI > 0.95, RMSEA < 0.05, SRMR < 0.08; Kline 2011). Standardized parameter estimates and standard errors are provided in Table 2, and substantive results from this model are depicted in Fig. 1. In the final model, all contemporaneous correlations among age 13 variables and age 15 variables were freed to vary across cultures, because freeing such variables significantly improved model fit. Additionally, 5 of the 6 stability paths from age 13 to age 15 outcomes were freed to vary across cultures, with the lone exception being the path from age 13 adolescent disclosure to age 15 adolescent disclosure because model fit did not significantly improve when this path was allowed to freely vary across cultures. In contrast, most predictor paths were constrained to be equal across cultures. Specifically, all 5 predictor paths by which age 13 measures predicted age 15 adolescent externalizing behavior, all 5 paths predicting age 15 adolescent secrecy, and all 5 paths predicting age 15 parent solicitation were constrained to be equal across culture. Moreover, 4 of 5 paths predicting age 15 internalizing behavior (with the lone exception being the path from age 13 adolescent secrecy to age 15 adolescent internalizing behavior) and 4 of 5 paths predicting parental control (with the lone exception being the path from age 13 externalizing behavior to age 15 parental control) were constrained to be equal across cultures. The notable exception to this trend was age 15 adolescent disclosure: only 1 of 5 predictor paths (the path from age 13 adolescent secrecy to age 15 adolescent disclosure) was constrained to be equal across cultures. This final model that freed the aforementioned paths and correlations to vary across cultures fit the data better than the initial model that was constrained to be equal across cultures (χ 2 [627] = 1196.54, p < 0.01). Moreover, omnibus measures of model fit indicated that this final model fit the data well (χ 2 [374] = 421.51, p = 0.045, RMSEA = 0.03, CFI = 0.98, TLI = 0.96, SRMR = 0.07), whereas the initial model that constrained all paths to be equal across cultures was a poor fit to the data (χ 2 [1001] = 1618.04, p < 0.01, RMSEA = 0.07, CFI = 0.77, TLI = 0.79, SRMR = .14)

Path Analysis Results
Complete results for all stability and predictor paths are reported in Table 2. Contemporaneous correlations among study variables were not the focus of the present study because numerous cross-sectional investigations in existing literature already report such contemporaneous findings, and so they are not reported here. Doing so would require the reporting of a total of 516 correlations (43 per cultural group) which was not possible given current space limitations. Correlations are available from the second author on request. Significant covariate effects are reported in Table 2 but not reported further. Additionally, stability paths were included in all study analyses to ensure that significant hypothesized associations emerged even after accounting for stability in behaviors. However, these paths themselves were not a focus of the current study, and therefore will be briefly summarized first here (and are reported in Table 2).
Regarding parent communication variables, higher age-13 parent solicitation predicted higher age-15 parent solicitation in 9 of 12 cultures (all but China, Kenya and Jordan), and higher age-13 parent control predicted higher age-15 parent control in seven of 12 cultures (Naples, Italy; Rome, Italy; Kenya; Thailand; Sweden; U.S. Whites; and Colombia). Regarding adolescent communication variables, greater age-13 adolescent disclosure predicted greater age-15 adolescent disclosure in all cultures, and higher age-13 adolescent secrecy predicted higher age-15 adolescent secrecy in 6 of 12 cultures (Naples, Italy; Rome, Italy; Philippines; Sweden; U.S. White; Colombia). Regarding adolescent psychological problems, greater age-13 internalizing behavior predicted greater age-15 internalizing behavior in all cultures, and greater age-13 externalizing behavior predicted greater age-15 externalizing behavior in all cultures except for Kenya (where p = 0.06). The study hypotheses are evaluated after accounting for such behavioral stabilities.

Hypothesis 1: Parent Communication Predicts Adolescent Psychological Problems
Hypothesis 1 was not supported. Parent solicitation and control did not predict adolescent externalizing or internalizing problems in any culture after accounting for prior levels of externalizing and internalizing problems and adolescent communication efforts. Table 2 Results from path analyses predicting age 15 outcomes from age 13 predictors, adolescent gender, and parent education

Hypothesis 2: Adolescent Communication Predicts Adolescent Psychological Problems
Hypothesis 2 was partially supported. As hypothesized, adolescent secrecy did prospectively predict higher levels of psychological problems over time, but the universality of these associations differed depending on the psychological problem examined. Specifically, higher age-13 adolescent secrecy predicted greater age-15 adolescent externalizing problems in all cultures (Table 2; Fig. 1). However, age-13 secrecy predicted greater age-15 internalizing problems in only two cultures (Colombia and Jordan; Table 2; Fig. 1). Moreover, contrary to the hypothesis adolescent disclosure was not a predictor of either externalizing or internalizing problems in any culture.

Hypothesis 3: Reciprocity among Parent-Adolescent Communication and Adolescent Psychological Problems
Hypothesis 3 included three sub-hypotheses. Hypothesis 3A was that adolescent psychological problems would be negatively and reciprocally related to parent solicitation, control, and adolescent disclosure, and positively related to adolescent secrecy. Adolescent secrecy was positively and reciprocally associated with adolescent externalizing behavior across cultures, but no other bidirectional links between parent/child communication efforts and adolescent psychological problems were found. Specifically, higher adolescent secrecy at age 13 predicted greater age-15 adolescent externalizing behavior across all cultures, and greater age-13 adolescent externalizing problems also predicted higher age-15 adolescent secrecy in all cultures (Table 2; Fig. 1).
Notably, several additional cross-cultural and culturespecific associations between adolescent psychological problems, parent control, and adolescent disclosure emerged in hypothesized directions, but these associations were unidirectional, as opposed to reciprocal, in nature. Each of these unidirectional associations was characterized by adolescent psychological problems prospectively predicting parent or adolescent communication patterns. Specifically, in all cultures, greater internalizing behavior at age 13 predicted greater parent control at age 15 (Table 2; Fig. 1). Additionally, in Kenya and Sweden, greater externalizing problems at age 13 predicted less adolescent disclosure at age 15, whereas in China, Colombia, and Sweden, greater internalizing problems at age 13 predicted less adolescent disclosure at age 15. Finally, in the China, US Black, Thailand, and Colombian samples, greater externalizing problems at age 13 predicted less parent control at age 15.
Hypothesis 3B was that parent solicitation, parent control, and adolescent disclosure would be positively and reciprocally related. These associations only emerged in specific cultures. Specifically, in the US Black and US Latino samples, greater age-13 parent solicitation led to greater age-15 adolescent disclosure, and greater age-13 adolescent disclosure predicted greater age-15 parent solicitation (  Table 2 and Colombian samples, greater age-13 adolescent disclosure predicted greater age-15 parent behavior control, but greater age-13 parent behavior control predicted less age-15 adolescent disclosure. So, within these two cultures, these bidirectional processes were reciprocal, but opposite in direction. Interestingly, positive associations between adolescent disclosure and parent solicitation, and adolescent disclosure and parent control did emerge as hypothesized across cultures. However, these associations were unidirectional, instead of reciprocal, in nature. Specifically, first, in all cultures, greater adolescent disclosure at age 13 predicted higher parent solicitation at age 15 (Table 2; Fig. 1). Second, in all cultures, greater adolescent disclosure at age 13 was a nearly significant predictor (p = 0.053-0.059) of greater parent control at age 15 (Table 2; Fig. 1).
Hypothesis 3C was not supported. There was no evidence that indicated parent solicitation, control, and disclosure were negatively and reciprocally related to adolescent secrecy.

Sensitivity Analyses Examining the Moderating Effect of Adolescent Gender
Though no a priori hypotheses about differences in study findings based on adolescent gender were made, exploratory sensitivity analyses were run to examine adolescent gender as a moderator of links among the parent and adolescent communication, and adolescent psychological problems variables so that future investigations could build upon this work. The results of these sensitivity analyses largely indicated that adolescent gender did not appear to play a moderating role in the bidirectional links between parent communication variables and adolescent communication variables, nor between parent and adolescent communication variables and adolescent externalizing or internalizing problems. Moreover, the moderating role of adolescent gender did not substantively vary across cultures. Specifically, out of 360 possible predictive paths that could be moderated by adolescent gender across cultures, only 12 such paths (3.33%) were significantly moderated by gender. Moreover, there did not appear to be any noticeable pattern in significant findings. No culture accounted for more than 3 significant moderating effects, and no more than 4 cultures ever significantly differed along any gender moderated path. Given that the number of moderating paths fell well within the 5% of paths expected to be significant due purely to chance at the p < 0.05 threshold, and that there was no discernable pattern to the results that emerged, no further reports on any single significant moderating paths were made. In summary, adolescent gender was not found to be a moderator of bidirectional links among parent-driven communication strategies, adolescent-driven communication strategies, and adolescent externalizing and internalizing problems. Future studies designed to examine these associations that hypothesize about such gender-specific effects a priori are needed.

Discussion
The development of adolescent externalizing and internalizing problems may be mitigated by adequate parenting strategies. Existing literature suggests that parents' asking questions about adolescent whereabouts (i.e., parent solicitation) or communicating rules of behavior (i.e., parent behavioral control) could protect adolescents from maladaptive developmental outcomes (Dishion and McMahon 1998), including externalizing (Pinquart 2017a) and internalizing problems (Pinquart 2017b). However, the development of adolescent psychological problems could be better understood by including adolescent information management, such as disclosure  and secrecy (Frijns et al. 2010), into models of parenting and adolescent development. Yet, studies including reciprocal associations between parents' and adolescents' communication efforts and adolescent psychological problems are scarce, and virtually no investigations capture cultural variation in these processes. Even scarcer are studies in which adolescent disclosure and secrecy are studied as distinct processes of adolescent information management (Villalobos Solís et al. 2015). Therefore, the current study examined how adolescent-reported parent solicitation, parent behavior control, and adolescent disclosure, secrecy, internalizing, and externalizing problems were interrelated over the course of two years in a sample of adolescents from 12 cultures. In addition, to demonstrate whether the potential links between parenting and adolescent psychological functioning are universal or culture specific, the moderating effect of culture on these links was examined.
The results of the current study showed both universal and culture-specific links between parenting and adolescent psychological problems. The universal links that emerged showed positive and reciprocal associations between adolescent secrecy and externalizing problems, positive links from age 13 adolescent disclosure to age 15 parent behavior control and age 15 parent solicitation, and a positive link from age 13 adolescent internalizing problems to age 15 parent behavior control. Some culture-specific links between parent-and adolescent-driven communication efforts and adolescent psychological problems emerged in Chinese, Jordanian, Colombian, Swedish, Kenyan, U.S. Black, and U.S. Latino samples of adolescents. Thus, the current study provides evidence for processes in parent-adolescent communication efforts and adolescent psychological problems both globally and at a specific culture level.

Links between Parent-Adolescent Communication Efforts and Adolescent Psychological Problems
Based on parenting theories (Soenens et al. 2019), it was expected that parent communication efforts would be negatively related to adolescent psychological problems over time. However, results of this study showed no significant links from parent communication efforts to adolescent psychological problems. In contrast, lower levels of parent behavioral control seem to be predicted by greater adolescent internalizing problems. These null findings are somewhat surprising given that parent behavioral control is usually referred to as a parenting strategy protective of the development of children's externalizing (Pinquart 2017a) and internalizing problems (Pinquart 2017b). One explanation for the null results may be the developmental stage of the adolescents. Early adolescence is characterized by increased individuation from parents as well as enhanced need of autonomy (Soenens et al. 2019). Such changes are often reflected in decreased levels of parental behavioral control as well as decreases in adolescents' willingness to conform to rules (Masche 2010) and an increased likelihood of adolescents finding parents' actions intrusive instead of caring (Hawk et al. 2008). Supporting this hypothesis, the non-significant association between parentdriven communication efforts and adolescent psychological outcomes corroborates other empirical research, which found null effects of parent-driven communication on early adolescents' delinquency (Keijsers et al. 2010a) and substance use (Kapetanovic et al. 2019b). Another explanation for these null results may be the inclusion of adolescents' own communication efforts in the model. Preliminary bivariate correlations across the entire sample showed that parent solicitation and behavioral control were both significantly and negatively associated with contemporaneous child externalizing behavior, and parent behavioral control was significantly negatively correlated with subsequent child externalizing behavior (as expected given prior metaanalyses e.g., Pinquart 2017aPinquart , 2017b. However, parent communication efforts were non-significant predictors of adolescent psychological problems once adolescents' own communication efforts were included in the model. The null results align with those seen from other studies that simultaneously assessed adolescents' own communication efforts and parent-driven communication. In these studies, parent communication efforts do not emerge as significant unique predictors of adolescent problems (see Kapetanovic et al. 2017). Notably, the present results showed that only adolescents' own communication efforts were related to their psychosocial problems over time. Thus, adolescentdriven communication efforts, or more specifically adolescent secrecy, as opposed to parent-driven communication efforts, seem to be more important predictors of subsequent psychological problems. The current findings extend the classic Stattin and Kerr (2000) work by emphasizing that both parents' and adolescents' communication patterns need to be examined simultaneously to grasp associations between parent-adolescent communication and adolescent psychological problems in many cultural contexts.
In addition, most earlier studies (e.g., Kapetanovic et al. 2019a) include adolescent communication effort as a mixture of disclosure and non-secrecy. However, as suggested by scholars (Frijns et al. 2010), this study included adolescent secrecy and disclosure as distinct constructs. Corroborating results from Frijns et al. (2010), adolescent secrecy, but not disclosure, was linked to psychological problems over time. More specifically, adolescent secrecy was bidirectionally associated with higher levels of externalizing problems, meaning that higher levels of secrecy predicted externalizing problems, and higher externalizing problems predicted higher levels of secrecy. Withholding information from parents may be a normative part of the adolescent individuation process linked to more autonomy from parents (Finkenauer et al. 2002). Yet, a consequence of this secrecy may be that parents become less knowledgeable of their adolescents' whereabouts which may result in fewer opportunities to support and guide their adolescents and more opportunities for adolescents to engage in aggressive or delinquent behavior. To clarify, externalizing problems are marked by lack of self-control and exhibition of rule breaking, aggressive, and delinquent behaviors (Merikangas et al. 2010). Adolescents exhibiting such problems are often met with criticism from peers or adults (Dishion and Patterson 1998). Because adolescents with such problems often lack skills to control their behavior, criticism from others may induce feelings of guilt and shame. As a result, adolescents may withdraw and withhold important information from others, including their parents, so that they may avoid shame and sanctions, and continue to engage in delinquent and externalizing behavior (Dishion and Patterson 1998). Attachment to parents is often considered as a prerequisite for acquiring self-control skills and for positive psychosocial development (Hirschi 1969). Keeping secrets from parents may have an adverse effect on the parent-adolescent relationship, putting a strain on the emotional bond between parents and their adolescent children. In other words, withholding information does not necessarily result in personal autonomy (in a positive sense) as proposed by Finkenauer et al. (2002) for all adolescents, but in some adolescents could lead to alienation from parents, which increases opportunities for unmonitored opportunities for delinquency, affiliation with deviant peers, and consequent externalizing behavior (Dishion and Patterson 1998). In that sense, adolescent secrecy could facilitate a vicious cycle where parents have difficulty reaching out and helping their adolescents to improve their selfcontrol skills, and adolescents demonstrate more externalizing problems.
Moreover, corroborating the findings in other studies (Kapetanovic et al. 2019a), the present results showed that in a cross-cultural sample of adolescents, adolescent disclosure was associated with higher levels of parent behavioral control and solicitation over time. This finding indicates that adolescents' willingness to communicate with parents may be the driving force in parent-adolescent communication. Sharing information with parents could be interpreted by parents as a sign that their adolescent is open to communicating with their parents, which facilitates opportunities for parents to ask questions and stipulate their own expectations and rules. In other words, adolescents seem to provide opportunities for parents to be engaged in their adolescents' lives. The word of caution is that the significance levels in links from adolescent disclosure to behavioral control were only marginal (p = 0.053-0.059). However, because the findings were in line with other earlier studies, were nearly significant even after controlling for other powerful covariates, and were nearly significant across all 12 cultures studied, they are reported here.

Are the Links between Parent-Adolescent Communication Efforts and Adolescent Psychological Problems Moderated by Culture?
An important question in parenting research is whether parenting effects on children's and adolescents' psychosocial development are universal or differ by culture. The current study addressed this question by finding that, in addition to the universal effects reported above, there are some culture-specific links among parent-adolescent communication and adolescent psychological problems. First, adolescent internalizing problems were prospectively associated with less disclosure, while adolescent secrecy was prospectively associated with greater internalizing problems in Jordan and Colombia. Furthermore, a negative link from internalizing problems to disclosure also emerged in the Chinese sample, and a negative link from externalizing problems to disclosure emerged in the Swedish and Kenyan samples of adolescents. These findings indicate that the relation between adolescent communication efforts and internalizing problems in Jordanian and Colombian adolescents was negative and intertwined such that adolescents who experienced internalizing problems disclosed less over time, while their secrecy toward parents resulted in more internalizing problems over time. In both Jordanian and Colombian culture, respect and guidance (Oweis et al. 2012) as well as loyalty and attachment between family members (Di Giunta et al. 2011) are especially strongly valued. Consequently, non-normative lack of communication between parents and adolescents in these cultures might be especially deleterious to both parent-adolescent communication and adolescent internalizing symptoms, given the central role family relationships play in both Jordan and Colombia. When adolescents share information with their parents, parents are given opportunities to provide social support, which is one of the most powerful protective factors that buffers adolescents against internalizing problems (Hamza and Willoughby 2011). By contrast, when adolescents experience internalizing problems they tend to withdraw from others, including parents (Rothenberg et al. 2018) and therefore disclose less (Hamza and Willoughby 2011), which makes it harder for parents to be involved and provide such preventative social support. In cultures such as Jordan and Kenya, this lack of social support might be especially detrimental because family relationships are so highly valued in both cultures.
It is however somewhat surprising that similar links were not found among Western adolescents given the widely demonstrated link between adolescent-driven communication efforts and psychological problems (e.g., Racz and McMahon 2011). Then again, earlier studies with Western adolescents predominantly measured adolescent disclosure as a mixture of disclosure and secrecy  (rather than separating these two constructs as proposed by Frijns et al. 2010) and often investigated externalizing (e.g., Racz and McMahon 2011) rather than internalizing problems. One exception is a study by Hamza and Willoughby (2011) where a negative link from adolescent depressive symptoms to disclosure was found among Canadian mid-adolescents and a study by Jäggi et al. (2016) where a negative link between depressive symptoms to secrecy was found among US Black preadolescents. Thus, specific prospective links between adolescent disclosure, secrecy, and internalizing among early adolescents have rarely been studied prior to the present investigation, and less is known about these links worldwide. Perhaps such links are less common than intuitively expected. The largely non-significant link between parent-adolescent communication and internalizing problems could also be a matter of how adolescent disclosure, in particular, is conceptualized. Scholars suggest that differentiating between routine disclosure (i.e., sharing of information about one's whereabouts, as measured here) and self-disclosure (i.e., sharing of deeper and more intimate information) is imperative when studying adolescent information management and the potential links to adolescent developmental trajectories . Although adolescent disclosure indeed is related to emotional connectedness between parents and their adolescents (Kapetanovic et al. 2019c), it is possible that measures of more specific and personal disclosure would provide more insight in the investigation of potential correlates of internalizing problems. More studies where adolescent internalizing problems and disclosure (routine or personal) and secrecy are studied are needed to gain better understanding of the processes between adolescent communication efforts and internalizing problems.
Furthermore, a negative link from internalizing problems to disclosure emerged in the Chinese sample, and a negative link from externalizing problems to disclosure emerged in the Swedish and Kenyan samples of adolescents. These findings indicate that the Chinese adolescents who were experiencing internalizing problems, and Swedish and Kenyan adolescents who were experiencing externalizing problems, disclosed less information to their parents over time. Another recent study (Lansford et al. 2018a) found that China had the second-lowest overall levels of adolescent internalizing behaviors, and both Sweden and Kenya had some of the lowest overall levels of externalizing behaviors. It is possible that when adolescents in these cultures experience psychological problems that are especially rare, they may be even more disturbed or ashamed of such problems, and therefore even less likely to discuss such problems with their parents, compared to adolescents in other cultures where such problems are more normative. Therefore, cultural norms about the experiences of such problems (i.e., that they rarely occur) may make the link between experiencing behavior problems and avoiding disclosure even stronger. Additionally, in China, Colombia, Thailand and U.S. Black samples, externalizing problems predicted lower levels of parent behavior control over time. In all of these cultures, harmony with one's family and society is especially highly prized (Lansford et al. 2018a). Therefore, it may be that in each of these cultures, as adolescents experience more externalizing problems, parents provide adolescents with less control and more autonomy to preserve family harmony and avoid conflict over the externalizing behavior.
Finally, some parent effects on parent-adolescent communication emerged in the Colombian, U.S. Black, and U.S. Latino samples. Specifically, a positive link from parent solicitation to adolescent disclosure was discovered in the samples of Black and Latino adolescents, which corroborates findings in other studies using U.S. Black (Bumpus and Rodgers 2009) and U.S. Latino samples (Fernandez et al. 2018) where within-time correlations between parental solicitation and adolescent disclosure were found. In both U.S. Black (McLoyd et al. 2019) andLatino (Halgunseth 2019) cultures, the values of family cohesion and respect are heavily emphasized. For example, in Latino cultures, the concept of "familismo" represents the strong loyalty and attachment between different family members, including respectful and considerate behavior toward authorities, such as parents. It is therefore possible that parent solicitation and adolescent disclosure are especially likely to be linked in U.S. Black and Latino cultures due to the high emphasis on family relationships. Another parent effect was discovered in Colombian and U.S. Black samples where a negative link between parent behavioral control and adolescent disclosure emerged. Parent behavioral control was expected to be linked to higher disclosure because the structure that parents offer through their behavioral expectations is relevant for adolescents' need for competence and, in turn, parent-adolescent communication (Soenens et al. 2019). Whether parents impose high, moderate, or low levels of behavioral expectations is highly important for adolescent adjustment (Harris-McKoy 2016). Prior work examining parent behavioral control in data used in the current study confirmed that parents in both the U.S. Black and Colombian samples demonstrate significantly higher behavioral control than the sample as a whole (Rothenberg et al. 2019). Given that parent behavioral control has been linked to increased feelings of being overly controlled (Kapetanovic et al. 2017), the high levels of parent behavioral control experienced by adolescents in these cultures may make it especially likely that adolescents feel overcontrolled, and therefore unlikely to disclose. Future studies should also include adolescent interpretations of parents' behavioral control in studies linking parent-adolescent communication and adolescent psychological problems.
Given the lack of studies including adolescents from non-western societies, the current study takes an important step towards understanding processes in parent-adolescent communication and adolescent psychological problems across cultures. However, one limitation of the study is that the adolescents are representative of the locales, but not wider countries, from which they were drawn, so national differences cannot be inferred from the current work. Future work could therefore build on this investigation in nationally representative samples. An additional limitation is that the data only consisted of adolescents' self-reports. Thus, associations in this study could be inflated due to response bias or common method variance. Studies indicate that parents and adolescents have different views of their interactions (de Los Reyes 2011) which is why future studies should also include parents' perceptions of parent-adolescent communication. Additionally, though the current sample is relatively large (n = 1087), culture-specific sample sizes are rather small (with ns around 100 in each culture). Therefore, it is possible that the study was underpowered to detect all culture-specific study effects. Consequently, replication and expansion of these findings in larger culture-specific samples is warranted. Also, although cross-lagged models are informative of multiple developmental processes (Meeus 2016), two-wave models do not explicate whether the links between the constructs are stable or changing over time. A three-wave longitudinal design would more thoroughly capture changing processes in the transactional linkages and disentangle whether the relations between constructs stabilize or change over time (Ployhart and Vandenberg 2010). Thus, future studies should include several timepoints to understand the change in long-term developmental processes between parent-adolescent communication and adolescent psychological health. In addition, because parent-adolescent interactions are not stable, but may fluctuate from day to day, another recommendation is to study links between parent-adolescent communication and adolescent psychological problems on a shorter time scale, such as on a weekly or daily basis (Villalobos Solís et al. 2015). Combining these methodologies would lend insight into short-term as well as long-term processes in parent-adolescent communication and development of adolescent psychological problems.

Conclusion
Parent-adolescent communication is one of the key mechanisms linking parent-adolescent relationships and the development of psychological problems in adolescence . Such communications can be parentdriven (parent behavioral control and solicitation) or adolescent-driven (disclosure and secrecy). Most existing studies do not separate adolescent disclosure from secrecy (as suggested by scholars; Finkenauer et al. 2002), often conduct research on western samples of adolescents, and do not examine processes longitudinally. The current study filled these gaps by examining how parent solicitation, behavioral control, adolescent disclosure, secrecy, internalizing, and externalizing problems are interrelated over the course of two years and testing whether the potential links between parenting and adolescent psychological functioning are moderated by culture. The results revealed that adolescents' own management of information (particularly via secrecy) is intertwined with their psychological problems both universally and on a culture-specific level. Notably, adolescent withholding of information from their parents predicted more externalizing problems over time, and adolescent externalizing problems predicted more secrecy from parents over time. In some cultures (i.e., Colombia and Jordan), withholding information from parents was also linked to internalizing problems over time. These findings underscore the importance of adolescents' own information management, and specifically their secrecy toward parents, in predicting adolescent psychological functioning. Put simply, across cultures, adolescent secrecy towards parents could be a signal for future adolescent psychological difficulties. The findings further reveal that adolescent information management also appears to influence subsequent parent-driven communication efforts across cultural settings. Specifically, in all cultures, greater adolescent disclosure predicted greater parent control and solicitation two years later. In the US Black (for control and solicitation), US Latino (for solicitation), and Colombian (for control) samples, these links were reciprocal. Taken together, the findings reveal that although parents play an important role in fostering parent-adolescent communication, the parent-adolescent communication process seems to be adolescent-driven, rather than parent-driven in cultures around the world. To understand adolescent psychological development, adolescent agency, in this case expressed by management of information via disclosure and secrecy, should be emphasized in parenting studies as well as implications for practices. In particular, addressing adolescent secrecy toward parents could be key in preventing externalizing and internalizing problems in many cultural contexts worldwide.
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons. org/licenses/by/4.0/. Lei Chang is Chair Professor of Psychology and Head of Department of Psychology, University of Macau. He conducts research in the areas of evolutionary psychology, including cultural evolution, life history, and mating research, developmental psychology focusing on parenting and child and adolescent social development, and statistics and psychometrics focusing on applications.

W. Andrew
Kirby Deater-Deckard is Professor in Psychological and Brain Sciences at the University of Massachusetts Amherst, MA, USA, where he serves as program head in developmental science, and neuroscience and behavior. His research focuses on the transactions between biological, cognitive, and environmental factors in the development and intergenerational transmission of self-regulation and related psychological and health outcomes.
Laura Di Giunta is Associate Professor at Sapienza University of Rome, Italy. She is research associate and consultant for the Italian and the Colombian units in the Parenting Across Cultures Study. Her research focuses on the continuity and change of individual differences in predicting youth (mal)adjustment, accounting for socialization and culture factors, especially in emotion regulation, adjustment, and social competence.
Kenneth A. Dodge is the Pritzker Professor of Public Policy and Professor of Psychology and Neuroscience at Duke University. He studies the development and prevention of aggressive and violent behaviors. His work provides a model for understanding how some young children grow up to engage in aggression and violence and provides a framework for intervening early to prevent the costly consequences of violence for children and their communities.
Sevtap Gurdal is a postdoctoral fellow at the Centre for Child and Youth Studies at University West, Sweden. Her research interests are parenting and children. Earlier research projects include parent attributions, parent attitudes, and child agency in different contexts. Ongoing research is about professionals' work with internet gaming disorder and child agency.
Patrick S. Malone is a senior research scientist with the Duke University Center for Child and Family Policy, Durham, NC, USA. His specialization is quantitative psychology, and his independent research program focuses on developing statistical models of change over time, especially in health behaviors and developmental psychopathology. He is particularly interested in novel approaches to understanding racial, ethnic, and cultural differences in adolescent substance use and other health risk behaviors.
Paul Oburu is the project director of a global research network based at New York University and New York University-Abu Dhabi. He is an Associate Professor in Child Development at Maseno University, Kenya where he also served as the Director of Quality Assurance and Performance Management. His research interests include parenting, caregiving stress, mental health and adjustment problems of grandmother caregivers and orphaned children.
Concetta Pastorelli is a full professor at the Department of Psychology of Sapienza University of Rome, and Director of the Interuniversity Centre for the Research in the Genesis and Development of Prosocial and Antisocial Motivations (CIRMPA). Her research focuses on the determinants of aggressive and prosocial behaviors and school achievement, parental personality and parenting, and children's and adolescents' adjustment.
Ann T. Skinner is a Research Project Manager at the Duke University Center for Child and Family Policy in Durham, NC, USA, and a doctoral student at Gothenburg University, Sweden and University West, Sweden. Her research focuses on parenting stress and child adjustment, and the development of aggression in youth. Past research projects include school interventions to prevent violence and to improve the academic skills of students with attention difficulties.
Emma Sorbring is a Professor of Child and Youth Studies and research director for the Centre for Child and Youth Studies at University West, Sweden. Her research and teaching interests focus on children, adolescents, and families. Her projects focus on parental behavior and children's adjustment, young people's decision-making, teenagers' internet use and parental strategies, and sexual development in traditional and new settings (the internet).
Laurence Steinberg is a Professor of Psychology at Temple University and an affiliate of King Abdulaziz University, Saudi Arabia. His research focuses on psychological and brain development in adolescence.
Sombat Tapanya is a clinical psychologist and an independent researcher at the Peace Culture Foundation, Chiang Mai, Thailand. His research and clinical practice focus on psychological trauma resulting from harsh parenting and abuse, and the treatment and prevention of such trauma. He has been working with Save the Children International and UNICEF in Thailand and the ASEAN region.
Liliana Maria Uribe Tirado is a Research Professor at Universidad de San Buenaventura, Medellin, Colombia. She is the principal investigator of the Colombian unit in the Parenting Across Cultures Study. She is actively involved in testing evidence-based prevention programs in different regions of Colombia. Her main research focuses on parenting and child adjustment in different cultural contexts.
Saengduean Yotanyamaneewong is a clinical psychologist and a lecturer in the Psychology Department, Faculty of Humanities, Chiang Mai University, Thailand. Her research and teaching interests focus on children, adolescents, and families. Her projects focus on parenting, parental burnout, and emotional and social development in children and adolescents.
Liane Peña Alampay is a Professor of Psychology at the Ateneo de Manila University, Philippines. Her research focuses on parenting and child development in cultural contexts, and interventions for youth and families at risk. She is a co-Investigator in the Parenting Across Cultures study, and Principal Investigator of Parenting for Lifelong Health-Philippines, which culturally adapts and tests evidence-based parent support interventions to prevent child maltreatment among vulnerable Filipino families.
Suha M. Al-Hassan is an Associate Professor of Early Childhood Special Education and Applied Behavior Analysis at Emirates College for Advanced Education, United Arab Emirates, and the Hashemite University, Jordan. Her research focus includes parenting and child development, school readiness, behavior management, inclusion, and cross cultural research. She has consulted with international agencies, such as UNICEF, on projects related to parenting and early childhood development.
Dario Bacchini is a Full Professor of Developmental Psychology and Coordinator of the PhD Course in Mind, Gender, and Language at the University of Naples Federico II, Italy. His research focuses on antisocial behavior in adolescence, moral development, school bullying, and parenting.