Developing and validating the Japanese version of the situational Awe cale (SAS-J)

The experience of awe, an emotional response to vast stimuli overwhelming ones’ current mental structure, has often been measured using a questionnaire method. The purpose of the present study was to develop and validate the Japanese version of the Situational Awe Scale (SAS), which is a useful tool for measuring awe experiences from the perspective of the discriminability between positive- and threat-awe. The present study investigated the factor structure and validity of the Japanese version of the SAS (SAS-J) using awe-inducing video clips, through three online surveys (N = 1034; mean age = 38.74, SD = 10.95, range = 18–75). Results revealed that the SAS-J consisted of the same four factors as the original SAS (i.e., connection, oppression, chills, and diminished self) and had the convergent, criterion, and discriminative validity in measuring both positive- and threat-awe experiences. Additionally, results showed that the SAS-J could distinguish between positive- and threat-awe experiences. These results suggested that the SAS-J could measure both positive- and threat-awe experiences with validity. This study would make a methodological contribution to awe research.

Awe, an emotional response to vast stimuli that transcend ones' current schema (Keltner & Haidt, 2003), has been widely researched from various social, cognitive, clinical, and physiological psychology perspectives. Awe increases feelings of being connected to others, community, and oneness Nelson-Coffey et al., 2019;Shiota et al., 2007;Stellar et al., 2017;van Cappellen & Saroglou, 2012), enhances feelings of oppression , involves psychophysiological responses (Chirico et al., 2017;Quesnel & Riecke, 2018;Schurtz et al., 2012), and inspires a sense of diminished self (Bai et al., , 2021Gordon et al., 2017;Piff et al., 2015;Shiota et al., 2007). Previous studies have often utilized questionnaire methods to briefly and comprehensively assess such psychological changes after awe experiences (Gabriel et al., 2020;Graziosi & Yaden, 2021;Krogh-Jespersen et al., 2020;Price et al., 2021). As previous research has reported on the culturally specified characteristics of awe experiences in Japan (Nakayama et al., 2020;Nomura et al. 2022), developing a Japanese version of a well-validated measure of a temporary awe experience would make a methodological contribution to awe research in Japan and improve cultural comparisons between awe experiences in Japan and Western countries.
To the best of our knowledge, there are two measures of awe experiences: the Situational Awe Scale (SAS; Krenzer et al., 2020), a scale composed of four factors (connection, oppression, chills, and diminished self), and the Awe Experience Scale (AWE-S; Yaden et al., 2019), a scale composed of six factors (altered time perception, self-diminishment, connectedness, perceived vastness, physical sensations, and need for accommodation). One of the biggest differences between the SAS and AWE-S is the discriminability between the positive-and threat-awe experiences. Although it has been demonstrated that the SAS can differentiate between two types of awe, it is unclear whether the AWE-S can do the same. Awe is classified into positive-awe and threatawe. Positive awe is often induced by beautiful landscapes and great people, and threat-awe is often induced by natural disasters and terror attacks . Previous research has also demonstrated that positive-and threat-awe were distinct form the perspectives of personality, behavior, and physiological response Guan et al., 2019;Nakayama et al., 2020;Sawada & Nomura, 2020), suggesting that they are an important part of research on awe. More importantly, threat-awe is associated with cultural differences in awe experiences; for example, while dispositional positive-and threat-awe are independent among North Americans, both dispositions are positively related among Japanese (Nakayama et al., 2020). Although awe is manly regarded as a positive emotion in Western cultures (Shiota et al., 2006), Japanese people also tend to recall positive-and threat-awe experiences equally when asked to recall awe experiences (Nomura et al. 2022). These previous studies have also demonstrated that threat appraisals are associated with the culturally specific characteristics of awe experiences in Japan, suggesting that threat-awe is also an important topic for investigating cultural differences in awe experiences. Hence, developing a Japanese scale that can distinguish positive-and threat-awe experiences would expand our knowledge regarding threat-awe experiences in Japan and cultural differences in awe experiences. Previous research that helped develop the SAS demonstrated that positive awe experiences enhanced greater feelings of connection than threat-awe experiences, while threat-awe experiences induced greater feelings of oppression than positiveawe experiences , suggesting that the SAS can distinguish between positive-and threat-awe experiences. Considering the significance of the discriminability between positive-and threat-awe experiences, in the current study, we aimed to develop and validate a Japanese version of the Situational Awe Scale (SAS-J) according to original research .
The original SAS is associated with various variables: small self, dispositional awe, and well-being . Consistent with research suggesting that small self and dispositional awe are positively associated not only each other (Piff et al., 2015), but also with the feeling of connectedness and self-reported psychophysiological responses (Yaden et al. 2019), connection, chills, and diminished self are positively associated with small self and dispositional awe. Additionally, many previous studies have demonstrated that positive-awe experiences increased subjective wellbeing Bai et al., 2021;Krause & Hayward, 2015;Rudd et al., 2012;Sturm et al., 2020;Zhao et al., 2019). In particular, feelings of awe positively predict life satisfaction through increased senses of connection to others (Krause & Hayward, 2015). In line with previous research, feelings of connection after awe-experiences are positively associated with the search for meaning in life, presence of meaning in life, daily gratitude, subjective happiness, and life satisfaction . In contrast, correlations between other SAS subscales (i.e., oppression, chills, and diminished self) and well-being-related measures are mixed . According to research on the original version of the SAS, we investigated the associations between the SAS-J and psychological variables to confirm the convergent and criterion validity of the SAS-J.
Although situational awe is closely related to dispositional awe, it is conceptually distinguished. Situational awe reflects temporal awe experiences and is influenced differently by the type of awe, while dispositional awe is defined as individual differences in daily awe experiences and is independent of temporally emotional states. We also examined whether the SAS-J could be distinguished from a measure of dispositional awe (i.e., the Dispositional Awe Scale; Shiota et al., 2006) to confirm its discriminative validity.
It should also be noted that, although the SAS is useful for assessing two types of awe Price et al., 2021), it has one potential limitation. Although Krenzer et al. (2020) confirmed the factor structure of the SAS using an induction of positive awe, it remains unclear whether its factor structure would be independent of the valence of awe-experiences. Hence, we investigated whether the same factor structure would be validated in assessing threat-awe experiences.
In summary, we sought to examine the validity of the SAS-J similar to the original study  through three online surveys. In Study 1, we assessed situational positive-awe, two other awe-related variables (small self and dispositional awe), and five well-being-related variables (search for meaning in life, presence of meaning in life, daily gratitude, subjective happiness, and life satisfaction), using video clips, one of the most used methods to induce feelings of awe (Piff et al., 2015). We first confirmed whether the factor structure of the SAS-J would have the same structure (i.e., four-factor model) as the original SAS using a confirmatory factor analysis (CFA). Second, we investigated the correlation between the SAS-J subscales. Based on a previous study , we predicted that a correlation between connection and oppression would not be significant and that other correlations would be positively significant. To confirm the convergent and criterion validity, we investigated the correlations between the four SAS-J subscales and the Small-Self Scale (Piff et al., 2015), Dispositional Awe Scale (Shiota et al., 2006), Meaning in Life Questionnaire (Steger et al., 2006), Gratitude Questionnaire (McCullough et al., 2002), Subjective Happiness Scale (Lyubomirsky & Lepper, 1999), and Satisfaction with Life Scale (Diener et al., 1985) based on the previous research . We predicted that connection, chills, and diminished self would be positively associated with small self and dispositional awe and that connection would also be positively associated with five well-being-related variables (i.e., search for meaning, presence of meaning, subjective happiness, daily gratitude, and life satisfaction). Based on the previous study , we did not hypothesize about the relationships between other SAS-J subscales and well-being-related variables.
In Study 2, we assessed situational threat-awe, small self, and dispositional awe to confirm the factor structure of the SAS-J and examine the correlations between the four subscales, utilizing the same method as used in Study 1. 1 We first predicted that the CFA would validate the four-factor model. We also predicted that a correlation between connection and oppression would not be significant, and that other correlations would be positively significant. Finally, we predicted that connection, chills, and diminished self would be positively associated with small self and dispositional awe. In addition, we investigated whether the SAS-J could differentiate between positive-and threat-awe using a combined dataset from studies 1 and 2. A previous study demonstrated that positive-awe increased subjective well-being compared with threat-awe . Given that feelings of connection underlie the psychological mechanism for the relationship between awe and well-being (Krause & Hayward, 2015), positive awe experiences should be more likely to induce higher levels of feelings of connection than threat-awe experiences. In contrast, as threat-awe induces lower levels of self-control and certainty and higher levels of powerlessness than positive-awe , threat-awe should be more likely to induce higher levels of tense and oppressive feelings. We predicted that positiveawe would enhance connection compared to threat-awe, and that threat-awe would enhance oppression compared to positive awe.
In Study 3, we assessed the situational awe and dispositional awe after experiences of neutral emotion, positive awe, and threat-awe, to investigate whether the SAS-J could be distinguished from the Dispositional Awe Scale and could distinguish the two types of awe. We predicted that dispositional awe would not be influenced by the inductions of awe due to trait-level individual differences, while situational awe would be influenced by inductions of awe. We also predicted that positive awe would increase connection compared to neutral and threat-awe, and that threat-awe would increase oppression compared to neutral and positive-awe. The present study was approved by the Ethical Review Board of the Graduate School of Education, Kyoto University (CPE-309).

Study 1: Assessing a positive-awe experience
In Study 1, we developed the SAS-J and examined whether it could measure positive awe experiences with validity.

Participants
A total of 619 Japanese participants were recruited via Crowd Works, a crowdsourcing service in Japan. Of these, 294 participants were excluded from the final analyses: 62 had too short (i.e., < 8-min) or long (i.e., > 40-min) response time for the entire survey, 14 for duplicated IP-address, and 218 for failing to correctly complete the two attention checks. 2 In the final sample, 325 participants (mean = 37.17, SD = 11.34, range = 18-75; 188 females, 135 males, 2 other) were analyzed. All participants provided written informed consent.

Procedure
This survey was conducted using Qualtrics (http:// www. qualt rics. com). Participants were asked to provide informed consent before starting the survey. First, they watched a 2-min positive-awe-inducing video that consisted of a montage of beautiful nature clips, composed of glaciers, forests, mountains, and stars (Piff et al., 2015). This video was validated in a prior study (Takano & Nomura, 2020). After watching the positive-awe-inducing clips, they completed measures of awe-experience, self-size, dispositional awe, well-being (meaning of life, subjective happiness, dairy gratitude, and life satisfaction), and demographic information (age and gender). The four well-being-related scales were presented in a random order. 1 As previous research has suggested that threat-awe did not increase well-being unlike positive-awe , we did not investigate the relationships between the SAS-J subscales and five well-being-related scales in Study 2, in which we used an induction of threat-awe. 2 Many participants (32.63%) were excluded from the two attention checks: 1) "Which was depicted in the video you watched? (1-Nature, 2-Human, 3-Archtecture, 4-Art, and 5-Other) Please be sure to select 'Other' to this question."; and 2) "At what time of the day are you currently participating this survey? (1-Morning, 2-Noon, 3-Evening, and 4-Night) Please be sure to select 'Evening' to this question." Although the exclusion rate seems to be much higher, which might make it difficult to interpret the results, the main results (i.e., factor structure, internal reliability, inter-subscales correlation, convergent validity, and criterion validity) in both the samples excluding participants who failed in attention checks and including them were almost the same (see the supplementary information).

Awe experience
We used the Japanese version of the sentence-formatted Situational Awe Scale to confirm the validity and reliability of this scale. First, the first author obtained permission to translate the SAS from the original authors and translated the SAS from English into Japanese, the second author checked it, and we discussed and modified it. Next, we backtranslated all the translated items and confirmed the semantic equivalence to the original SAS via ulatus (https:// www. ulatus. jp). The SAS consisted of 15 items. Participants were asked to respond with their agreement from 1 (not at all) to 7 (very much) for each statement (Cronbach's αs ≥ 0.61).

Small self
We measured the participants' smaller self-size after they watch the awe-inducing clips using the Japanese version (Nomura, 2021) of the Small-Self Scale (Piff et al., 2015). It consisted of 10 items (e.g., "I feel the presence of something greater than myself," and "I feel small or significant"). Participants were asked to respond with their agreement from 1 (strongly disagree) to 7 (strongly agree) for each statement (α = 0.88).

Dispositional awe
We measured the participants' dispositional awe using the Japanese version (Nomura et al. 2022) of the Dispositional Awe Scale (Shiota et al., 2006). It consisted of six items (e.g., "I often feel awe," and "I feel wonder almost every day.") Participants were asked to respond with their agreement from 1 (strongly disagree) to 7 (strongly agree) for each statement (α = 0.75).

Meaning in life
We measured the participants' meaning in life using the Japanese version (Shimai et al., 2019) of the Meaning in Life Questionnaire (Steger et al., 2006). It consisted of two subscales: search for meaning in life (five items, e.g., "I am looking for something that makes my life feel meaningful.") and presence of meaning in life (five items, e.g., "I understand my life's meaning."). Participants were asked to respond with agreement from 1 (absolutely untrue) to 7 (absolutely true) for each statement (search for meaning: α = 0.89; presence of meaning: α = 0.87).

Subjective happiness
We measured the participants' subjective happiness by using the Japanese version of (Shimai et al., 2004) the Subjective Happiness Scale (Lyubomirsky & Lepper, 1999). It consisted of the four following items that were rated on a 7-point Likert scales: "In general, I consider myself..." (1 (a not very happy person) to 7 (a very happy person)), "Compared to most of my peers, I consider myself...," (1 (less happy) to 7 (more happy)), "Some people are generally very happy. They enjoy life regardless of what is going on, getting the most out of everything. To what extent does this characterization describe you?." (1 (not at all) to 7 (a great deal)), and "Some people are generally not very happy. Although they are not depressed, they never seem as happy, as they might be. To what extent does this characterization describe you?" (reversed item) (1 (not at all) to 7 (a great deal)) (α = 0.87).

Gratitude
We measured the participants' dairy gratitude by using the Japanese version (Shiraki & Igarashi, 2014) of the Gratitude Questionnaire (McCullough et al., 2002). It consisted of six items (e.g., "I have so much in life to be thankful for," and "If I had to list everything that I felt grateful for, it would be a very long list.") Participants were asked to respond with agreement from 1 (strongly disagree) to 7 (strongly agree) for each statement (α = 0.82).

Life satisfaction
We measured the participants' life satisfaction by using the Japanese version (the upper part of the scales available on the Diener's homepage (http:// labs. psych ology. illin ois. edu/ ~edien er/ SWLS. html)) of the Satisfaction with Life Scale (Diener et al., 1985). It consisted of five items (e.g., "In most way my life is close to ideal," and "I am satisfied with life.").
Participants were asked to respond with agreement from 1 (strongly disagree) to 7 (strongly agree) for each statement (α = 0.84).

Structural validity
We conducted a CFA to examine the factor structure of the SAS-J by using the lavaan package (Rosseel, 2012) in R (R Core Team, 2021) (see Table 1). As predicted, the CFA showed that the four-factor model provided an adequate fit to the data (Comparative Fit Index (CFI) = 0.90, Tucker-Lewis Index (TLI) = 0.87, Root Mean Square Error of Approximation (RMSEA) = 0.087, and Standardized Root Square Residual (SRMR) = 0.084). Although we also investigated the validity of the higher-order models as Krenzer et al. (2020)'s Study 2 has selected a high-order model, the results indicated that the higher-order models did not converge. To search for a more valid factorial structure of the SAS-J, we also conducted an Exploratory Factor Analysis (EFA). 3 The scree plot demonstrated that a four-factor solution was appropriate for the data ( Figure S1). The EFA using the maximum likelihood estimation and Promax rotation also demonstrated that the SAS-J consisted of the same four factors as the previous study .

Reliability
All composite and subscale scores were calculated by averaging the scores across the relevant items, given an inverse score, if necessary. Descriptive statistics (mean, SD, and The inter-scale correlations for the four SAS-J subscales also provided the validity. As predicted, the correlation between connection and oppression was insignificant (r(323) = 0.02, 95%CI [-0.09, 0.13], p = 0.77), and all other correlations between the four subscales were positively significant (rs ≥ 0.12, ps ≤ 0.03, see Table 3), which was consistent with the original version of the SAS .

Convergent validity
We examined whether the four SAS-J sub-components correlated with the small self and dispositional awe to confirm convergent validity. As predicted, scores on the connection, chills, and diminished self subscales were positively correlated with both scores on the Small Self Scale and Dispositional Awe Scale (rs ≥ 0.20, ps < 0.001).
Criterion validity. We examined whether the four SAS-J sub-components correlated with the search for meaning, presence of meaning, subjective happiness, gratitude, and life satisfaction. Contrary to our prediction, scores on the connection subscale correlated positively with scores on four well-being-related measures excluding the Subjective Happiness Scale (Subjective Happiness Scale: r(323) = 0.10, p = 0.08, 95% CI [-0.01, 0.20]; others: rs ≥ 0.17, ps ≤ 0.002). The results were mixed for oppression, chills, and diminished self subscales. These results were almost consistent with that of a previous research , which suggested that the SAS-J has the criterion validity. Interestingly, our results demonstrated that scores on the connection subscale were not positively correlated with scores on the Subjective Happiness Scale, which were inconsistent with the previous Western research . It should be noted that, although Japanese people are considered to emphasize interdependent happiness and social harmony in subjective well-being when compared to North Americans (Hitokoto & Uchida, 2015;Uchida & Kitayama, 2009), the Subjective Happiness Scale includes more items that measure and compare the extent of individual's happiness than other scales that measure well-being (Lyubomirsky & Lepper, 1999;Shimai et al., 2004). Therefore, in terms of the interdependent happiness, the present study results suggest that feelings of connection with others may not be associated with feelings of being happier among Japanese people in comparison with other cultures.
In summary, we examined whether the SAS-J could be validated from the perspectives of structural validity, reliability, convergent validity, and criterion validity by using the induction of positive awe. The results supported the fourfactor structure and provided the evidence for reliability, convergent validity, and criterion validity. However, it remained unclear whether the SAS-J could assess a threat-awe experience with validity. Hence, in Study 2, we examined whether the SAS-J would be validated when assessing threat-awe experiences.

Study 2: Assessing a threat-awe experience
In Study 2, we investigated whether the SAS-J could measure threat-awe experiences with validity. We also examined whether the SAS-J could discriminate between positive-and threat-awe by comparing the results of studies 1 and 2.

Participants
We recruited 594 Japanese participants were recruited via Crowd Works. Of these, 331 participants were excluded from the final analyses: 71 had for too short (i.e., < 8-min) or long (i.e., > 40-min) response time for the entire survey, 20 for duplicated IP-address, and 212 for failing to correctly complete the two attention checks. 4 In the final sample, 291 participants (mean age = 35.49, SD = 10.50, range = 20-66; 167 females, 123 males, 1 other) were analyzed. All participants provided written informed consent.

Procedure
This survey was also conducted in Qualtrics. Participants were asked to provide informed consent before starting the survey. First, they watched a 2-min threat-awe-inducing video that consisted of a montage of threat-based nature clips, composed of tornados, thunder, volcano, and avalanche . This video was validated in a previous study (Takano & Nomura, 2020). After watching the threat-awe-inducing clips, they completed measures of awe-experience, self-size, dispositional awe, and demographic information (age and gender).

Materials
We used the same scales as used in Study 1.

Structural validity
We conducted a CFA to examine the factor structure of the SAS-J (see Table 1). As predicted, the CFA showed that the four-factor model provided an adequate fit to the data (CFI = 0.91, TLI = 0.89, RMSEA = 0.082, and SRMR = 0.067). These were similar to the results of Study 1. All composite and subscale scores were calculated by averaging the scores across the relevant items, given an inverse score, if necessary. Descriptive statistics (mean, SD, and Cronbach's coefficient alpha) and the inter-scale correlations for the SAS-J and all other measures are presented in Tables 2 and 4. The composite and four subscale measures all had good reliability (SAS-J total: α = 0.84; connection: α = 0.84; oppression: α = 0.78; chills: α = 0.83; diminished self: α = 0.74), which were similar to the results of the original report  and Study 1.
The inter-scale correlations for the four SAS-J subscales also provided the validity. As predicted, the correlation between connection and oppression was insignificant (r(289) = 0.04, 95%CI [-0.07, 0.16], p = 0.45), and all other correlations between the four subscales were positively significant (rs ≥ 0.16, ps ≤ 0.007, see Table 4), which was consistent with the previous research  and Study 1.

Convergent validity
We examined whether the four SAS-J sub-components correlated with the small self and dispositional awe to confirm convergent validity. As predicted, scores on the connection, chills, and diminished self subscales were positively correlated with both scores on the small self and dispositional awe measures (rs ≥ 0.28, ps < 0.001). Interestingly, scores on the oppression subscale were also positively correlated with scores on the Dispositional Awe Scale (r(289) = 0.14, 95% CI [0.02, 0.25], p = 0.02). Differences between positive-and threat-awe.
To confirm whether the SAS-J would be able to differentiate between the two types of awe, we conducted independent t-tests on the scores of the connection and oppression subscales using a combined dataset (i.e., study 1: positiveawe condition; study 2: threat-awe condition; see Fig. 1). As expected, the independent t-tests showed that while participants in the positive awe condition reported higher scores on connection than participants in the threat-awe condition (t(608.17) = 4.80, p < 0.001, d = 0.39, 95% CI [0.22, 0.55]), the latter reported higher scores on oppression than the former (t(596.99) = 8.08, p < 0.001, d = 0.65, 95% CI [0.49, 0.82]). Consistent with previous research , these results indicated that the SAS-J could differentiate between positive-and threat-awe experiences.
In summary, we examined whether the SAS-J was validated from the perspectives of structural validity, reliability, and convergent validity using the induction of threat-awe. The results supported the four-factor structure and provided the evidence for reliability and convergent validity, which suggested that the SAS-J could measure experiences of threat-awe. In contrast, it remains unclear whether the state-scale SAS-J was distinguished from the existing awe-related measure (i.e., Dispositional Awe Scale; Shiota et al., 2006), which was a trait-scale. We also demonstrated that positive awe enhanced feelings of connectedness compared to threat-awe, and threatawe induced feelings of oppression compared to positive awe. Given the lack of non-awe control conditions (e.g., neutral condition) in Studies 1 and 2, the next step of this research was to examine whether positive-and threat-awe experiences enhance feelings of connection and oppression more than neutral emotions, respectively. Therefore, in Study 3, we investigated the discriminative validity of situational awe and dispositional awe measurements and compared the effects of neutral, positiveawe, and threat-awe on connection, oppression, chills, and diminished self. Additionally, although we used awe-inducing video clips validated in previous research (Piff et al., 2015;Takano & Nomura, 2020) in Studies 1 and 2, it remains unclear whether participants felt awe in the two studies as the two studies did not include a self-reported manipulation check. Hence, we also added a self-reported manipulation check in Study 3. Fig. 1 Connection and oppression in study 1 (positive-awe) and 2 (threat-awe). Note. Error bars represent 95% confidence intervals

Study 3: Assessing positive-and threat-awe
In Study 3, we investigated the discriminative validity between the SAS-J and the Dispositional Awe Scale. We also added a neutral condition and compared two types of awe experiences with a neutral emotional state.

Participants
We recruited 476 Japanese participants were recruited via Crowd Works. Power analysis using the 'pwr.t.test' function from the pwr package (Champely, 2020) indicated that the required sample size was 141 × 3 (i.e., 423) to detect an effect size calculated in Study 2 (i.e., d = 0.39) in a twosample t-test, with α = 0.016 and β = 0.80. Of these, 58 participants were excluded from final analyses: 10 had for too short (i.e., < 4-min) or long (i.e., > 20-min) response time for the entire survey, 39 for duplicated IP-address, and nine for failing to correctly complete the attention check. 5 In final sample, 418 participants (mean age = 42.30, SD = 9.96, range = 20-73; 201 females, 217 males) were analyzed. All participants provided written informed consent.

Procedure
This survey was conducted using Qualtrics. Participants were asked to provide informed consent before starting the survey. First, they watched one of three 2-min emotioninducing videos: a neutral clip that comprised of an automobile company advertisement (Takano & Nomura, 2020), positive-awe-inducing clips that consisted of a montage of beautiful nature clips composed of glaciers, forests, mountains, and stars (Piff et al., 2015), and threat-awe-inducing clips that consisted of a montage of threat-based nature clips, composed of tornados, thunder, volcano, and avalanche . These videos were validated in a previous study (Takano & Nomura, 2020). After watching one of three video clips, they completed the measures of emotional state, awe-experience, dispositional awe, and demographic information (age and gender).

Emotion
We used these emotion reports to confirm that the participants felt awe while watching the two awe-inducing videos. All participants reported the extent to which they felt: "ikei," "ifu" (awe in Japanese; Muto, 2014), wonder, fear, anxiety, amusement, happy, gratitude, respect, joy, sad, anger, cold, warmth, nervous, and satisfaction, rated on a 9-point Likert scale from 1 (not at all) to 9 (extremely). This measure was based on previous research . Additionally, the attention check item was included in this measure. According to previous research (Takano & Nomura, 2021), we used the mean scores of ikei, ifu, and wonder as awe scores.
Awe experience and dispositional awe. We used the same scales as used in studies 1 and 2.

Self-reported manipulation check
We conducted an analysis of variance (ANOVA) on the awe score to confirm that the positive-and threat-awe-inducing videos induced feelings of awe compared to the neutral video. The results showed that awe scores were significantly higher in the positive-awe condition (

Awe experience
We conducted ANOVAs on the scores on the four SAS-J subscales (see Fig. 2 and Table 4). As predicted, the results showed that the scores on connection were significantly higher in the positive-awe condition ( . These findings not only replicated the results of Study 2, but also suggested that the SAS-J differentiated between positive-and threat-awe from the perspective of comparison with a neutral state. We also conducted correlation analyses between the emotion scores and SAS-J scores to confirm that the SAS-J captured feelings of awe (see Table 5). The results revealed that awe ratings were positively correlated with the scores on the SAS-total, connection, chills, and diminished self in the positive-awe condition (rs ≥ 0.35, ps ≤ 0.001) and with the scores on the SAS-total, oppression, chills, and diminished self in the threat-awe condition (rs ≥ 0.25, ps ≤ 0.002). These results suggested that the SAS-J captured both awe experiences. Interestingly, the scores on the SAS-J total and four subscales were slightly more correlated with the scores on some emotions than the scores on ikei, ifu, wonder, and awe. In particular, the scores on sadness were also positively correlated with the scores on the SAS-total, connection, chills, and diminished self in the positive-awe condition (rs ≥ 0.19, ps ≤ 0.03) and with the scores on the SAS-total, oppression, chills, and diminished self in the threat-awe condition (rs ≥ 0.25, ps ≤ 0.002). Next, we conducted partial correlation analyses between awe, sad, and SAS-J scores to confirm that the SAS-J captured awe experiences rather than sad experiences. The results demonstrated that awe scores were also positively correlated with the scores on the SAS-total, connection, chills, and diminished self in the positive-awe condition (rs ≥ 0.32, ps < 0.001) and with the scores on the SAS-total, oppression, chills, and diminished self in the threat-awe condition (rs ≥ 0.23, ps ≤ 0.007), when controlled for sad scores. Conversely, the results of partial correlations between sad scores and the SAS-J total, connection, chills, and diminished self subscale scores in the positive awe condition when controlled for awe scores were mixed (rs ≥ 0.10, ps ≤ 0.27), while the results of partial correlations between sad scores and the SAS-J total, oppression, chills, and diminished self subscale scores in the threat awe condition when controlled for awe scores were positively significant (rs ≥ 0.22, ps ≤ 0.009). Hence, Fig. 2 Connection and oppression in study 3. Note. Error bars represent 95% confidence intervals  [-.17, .16] these results suggested that the SAS-J captured awe rather than other emotions.

Discriminative validity
We conducted an ANOVA on the dispositional awe scores to investigate the discrimination validity between the SAS-J and Dispositional Awe Scale. We utilized a multiple imputation method using the mi.anova function in the miceadds package (Robitzsch & Grund, 2021) as there were some missing values in the dataset. As predicted, the results showed that scores on dispositional awe scale did not significantly differ among the three conditions ( Given that the scores on the four SAS-J subscales differed among the three conditions (Fs ≥ 7.59, ps < 0.001, p 2 s ≥ 0.035), these results suggested that the SAS-J was distinguished from the Dispositional Awe Scale.

General Discussion
This study aimed to develop and validate the SAS-J and to confirm whether it could differentiate between positiveand threat-awe, using awe-inducing video clips. The results of the CFA showed that the SAS-J consisted of four factors that assessed both positive-and threat-awe experiences. Our results also confirmed the reliability, convergent, criterion, and discriminative validity of the SAS-J. Moreover, the results demonstrated that the SAS-J could differentiate between positive-and threat-awe experiences. Hence, our results suggest that the SAS-J could measure threatawe experiences as well as positive-awe experiences with validity.

Connection
The results showed that positive awe increased the feeling of connectedness, which was consistent with much previous research Krenzer et al., 2020;Nelson-Coffey et al., 2019;Shiota et al., 2007;Stellar et al., 2017;van Cappellen & Saroglou, 2012;Yaden et al., 2019). Previous research has also suggested that positive awe experience enhanced well-being through various psychological mechanisms Bai et al., 2021;Krause & Hayward, 2015;Rudd et al., 2012;Sturm et al., 2020;Zhao et al., 2019). According to a previous study (Krause & Hayward, 2015), our results showed that a sense of connection during positive awe experiences was positively correlated with well-being, which suggested that the feelings of connection to someone/thing (i.e., others and oneness) was associated with the effects of awe on well-being.

Oppression
We demonstrated that threat-awe induced greater feelings of oppression than positive awe and neutral emotional states, while positive awe did not induce greater feelings of oppression than neutral emotional states. Given that previous research suggested that threat-awe induced greater feelings of time pressure than positive awe (Guan et al., 2019), our results suggested that feelings of oppression in threat-awe experiences may have been associated with time perception. Further research should be conducted to investigate the effects of oppression in threat-awe experiences on cognition and behavior. Interestingly, the results also revealed that individuals with high dispositional positive-awe tend to feel oppression after threat-awe experiences, which might be inconsistent with the previous research in Western cultures that have demonstrated that dispositional positive awe was not correlated with feelings of oppression induced awe experiences . Previous research has demonstrated that dispositional positive-awe was positively correlated with dispositional threat-awe among Japanese people but not among North Americans, suggesting that awe would be characterized as a more mixed emotion in Japan (Nakayama et al., 2020). Given that feelings of oppression are induced mainly by threat-awe experiences, the present research results provide us insights into awe as a mixed emotion in Japan in terms of dispositional awe and situational awe.

Chills
Consistent with previous research (Schurtz et al., 2012;Yaden et al., 2019), the present study demonstrated that both positive-and threat-awe experiences involved self-reported physiological responses. Previous research also demonstrated that awe experiences were associated with objective measures of psychophysiological responses such as goose bumps (Quesnel & Riecke, 2018). Hence, it is of interest to investigate the relationships between the SAS-J chills subscale and such psychophysiological responses.

Diminished self
Our results showed that the two types of awe induced diminished self which was consistent with previous research Guan et al., 2019;Sawada & Nomura, 2020;Takano & Nomura, 2020). Awe's diminished self effects have often been used as manipulation checks for the inductions of awe (Guan et al., 2019;Sawada & Nomura, 2020;Takano & Nomura, 2020, 2021. Since there were a small number of items of the SAS-J diminished self subscale, it would be useful for manipulation checks.

Limitations and Future Research Directions
Although the present study demonstrated that the SAS-J measures psychological states after awe experiences through three online surveys, it has some limitations. First, we did not investigate the relationship between the SAS-J and non-selfreported behavioral and objective physiological measures. As physiological responses are thought to be best measured by direct objective methods (Scherer & Moors, 2019), previous research on awe has also used the direct objective methods (e.g., heart rate and skin conductance; Chirico et al., 2017;Gordon et al., 2017). In relation to this point, a previous study revealed that the SAS was associated with eye movements (rough-Jespersen et al., 2020). Further studies are required to examine whether and how the SAS-J is associated with behavioral, psychophysiological, and neuroscientific measures.
Second, we did not investigate whether the SAS-J measured awe experiences in the real world. Since we used video stimulus as a method of inducing awe based on previous research (e.g., Piff et al., 2015), the present study may lack ecological validity. As in a previous study , field experiments should be conducted to confirm the ecological validity of our results. Third, we only utilized nature as an awe-inducing stimulus, one of the most common elicitors of awe Gordon et al., 2017). Relatively, we also focused only on threat among the "flavoring" features of awe (Keltner & Haidt, 2003). It is of interest to examine whether the SAS-J would capture other "flavoring" features other than threats. For example, awe experiences involving a supernatural entity may be more closely associated with feelings of connection than awe experiences involving other "flavoring" features (Krause & Hayward, 2015;van Cappellen & Saroglou, 2012). Hence, future studies should examine whether and how the SAS-J would measure non-natural experiences of awe and capture other "flavoring" features of awe, combined with the AWE-S which can distinguish between awe in nature and interpersonal awe (Graziosi & Yaden, 2021).
Additionally, we did not investigate the relationships between the SAS-J subscales and five well-being-related variables in Study 2 and 3. Interestingly, the results of Study 1 demonstrated that feelings of oppression after positive-awe experiences were negatively associated with four well-beingrelated variables other than searching for meaning in life. As threat-awe experiences mainly induce feelings of oppression,