Abstract
The heightened levels of peer relationship difficulties associated with Attention Deficit/Hyperactivity Disorder (ADHD) potentially predispose adolescents to feelings of loneliness and depressive symptoms. The current study explores whether feelings of loneliness mediate the effects of ADHD on depressive symptoms. Eighty-four adolescents (Mage = 13.01 years, 75% Male) in Western Australian schools completed mental health and wellbeing surveys. Multivariate analysis of variance assessed whether adolescents with ADHD had greater loneliness and depressive symptoms, and mediation analysis explored whether loneliness mediated the relationship between ADHD and depressive symptoms. Adolescents with ADHD reported significantly greater depressive symptomatology and feelings of isolation and lower quality of friendships. Together, friendship and isolation related loneliness fully mediated the relationship between ADHD and depressive symptoms. Loneliness is associated with depression in adolescents with ADHD and may be an important consideration when addressing symptoms of depression among young people diagnosed with ADHD.
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References
Al-Yagon, M. (2009). Comorbid LD and ADHD in childhood: socioemotional and behavioural adjustment and parents’ positive and negative affect. European Journal of Special Needs Education, 24(4), 371–391. https://doi.org/10.1080/08856250903223054.
American Academy of Pediatrics. (2011). ADHD: Clinical practice guidelines for the diagnosis, evaluation, and treatment of attention-deficit/hyperactivity disorder in children and adolescents. Pediatrics, 128(5), 1007–1022.
American Psychiatric Association. (2000). Diagnostic and statistical manual of mental disorders (4th ed., text rev.). Washington, D.C: Author.
American Psychiatric Association. (2013). Diagnostic and statistical manual of mental disorders (DSM-5®). American Psychiatric Pub.
Antshel, K., Macias, M., & Barkley, R. A. (2009). The child with attention deficit hyperactivity disorder. Child Pediatric Neurology, 525–540.
Antshel, K. M., Faraone, S. V., & Gordon, M. (2012). Cognitive behavioral treatment outcomes in adolescent ADHD. Focus, 10(3), 334–345. https://doi.org/10.1177/1087054712443155.
Australian Bureau of Statistics. (2011) Census of population and housing: Socio-Economic Index for Areas (SEIFA), Australia, State Suburb, Indexes. http://www.abs.gov.au.
Bacchini, D., Affuso, G., & Trotta, T. (2008). Temperament, ADHD and peer relations among schoolchildren: the mediating role of school bullying. Aggressive Behavior: Official Journal of the International Society for Research on Aggression, 34(5), 447–459. https://doi.org/10.1207/s15374424jccp3401_5.
Baldwin, J. S., & Dadds, M. R. (2007). Reliability and validity of parent and child versions of the multidimensional anxiety scale for children in community samples. Journal of the American Academy of Child & Adolescent Psychiatry, 46(2), 252–260. https://doi.org/10.1097/01.chi.0000246065.93200.a1.
Banich, M. T., Smolker, H. R., Snyder, H. R., Lewis-Peacock, J. A., Godinez, D. A., Wager, T. D., & Hankin, B. L. (2019). Turning down the heat: Neural mechanisms of cognitive control for inhibiting task-irrelevant emotional information during adolescence. Neuropsychologia, 125, 93–108. https://doi.org/10.1016/j.neuropsychologia.2018.12.006.
Becker, S. P., Luebbe, A. M., & Langberg, J. M. (2012). Co-occurring mental health problems and peer functioning among youth with attention-deficit/hyperactivity disorder: a review and recommendations for future research. Clinical Child and Family Psychology Review, 15(4), 279–302. https://doi.org/10.1007/s10567-012-0122-y.
Biederman, J., Ball, S. W., Monuteaux, M. C., Mick, E., Spencer, T. J., McCreary, M., & Faraone, S. V. (2008). New insights into the comorbidity between ADHD and major depression in adolescent and young adult females. Journal of the American Academy of Child & Adolescent Psychiatry, 47(4), 426–434. https://doi.org/10.1097/CHI.0b013e31816429d3.
Bollmer, J. M., Milich, R., Harris, M. J., & Maras, M. A. (2005). A friend in need: the role of friendship quality as a protective factor in peer victimization and bullying. Journal of Interpersonal Violence, 20(6), 701–712. https://doi.org/10.1177/0886260504272897.
Bukowski, W. M., Laursen, B., & Hoza, B. (2010). The snowball effect: friendship moderates escalations in depressed affect among avoidant and excluded children. Development and Psychopathology, 22(4), 749–757. https://doi.org/10.1017/S095457941000043X.
Cacioppo, J. T., & Cacioppo, S. (2018). The growing problem of loneliness. The Lancet, 391(10119), 426. https://doi.org/10.1016/S0140-6736(18)30142-9.
Cacioppo, J. T. & Patrick, W. (2008). Loneliness: Human nature and the need for social connection. WW Norton & Company.
Cacioppo, J. T., Hawkley, L. C., Crawford, L. E., Ernst, J. M., Burleson, M. H., Kowalewski, R. B., Malarkey, W. B., van Cauter, E., & Berntson, G. G. (2002). Loneliness and health: potential mechanisms. Psychosomatic Medicine, 64(3), 407–417.
Cacioppo, J. T., Hawkley, L. C., & Berntson, G. G. (2003). The anatomy of loneliness. Current Directions in Psychological Science, 12(3), 71–74.
Cacioppo, J. T., Hawkley, L. C., Ernst, J. M., Burleson, M., Berntson, G. G., Nouriani, B., & Spiegel, D. (2006). Loneliness within a nomological net: an evolutionary perspective. Journal of Research in Personality, 40(6), 1054–1085. https://doi.org/10.1016/j.jrp.2005.11.007.
Cacioppo, S., Capitanio, J. P., & Cacioppo, J. T. (2014). Toward a neurology of loneliness. Psychological Bulletin, 140(6), 1464–1504. https://doi.org/10.1037/a0037618.
Capodieci, A., Crisci, G., & Mammarella, I. C. (2018). Does positive illusory bias affect self-concept and loneliness in children with symptoms of ADHD? Journal of Attention Disorders, 1087054718763735. https://doi.org/10.1177/1087054718763735.
Da Fonseca, D., Seguier, V., Santos, A., Poinso, F., & Deruelle, C. (2009). Emotion understanding in children with ADHD. Child Psychiatry and Human Development, 40(1), 111–121. https://doi.org/10.1007/s10578-008-0114-9.
Dahlberg, K. (2007). The enigmatic phenomenon of loneliness. International Journal of Qualitative Studies on Health and Well-Being, 2(4), 195–207.
Dir, A. L., Hummer, T. A., Aalsma, M. C., & Hulvershorn, L. A. (2019). Pubertal influences on neural activation during risky decision-making in youth with ADHD and disruptive behavior disorders. Developmental Cognitive Neuroscience, 36, 100634. https://doi.org/10.1016/j.dcn.2019.100634.
Eisenberger, N. I. (2012). The pain of social disconnection: examining the shared neural underpinnings of physical and social pain. Nature Reviews Neuroscience, 13(6), 421–434. https://doi.org/10.1038/nrn3231.
Elmose, M., & Lasgaard, M. (2017). Loneliness and social support in adolescent boys with attention deficit hyperactivity disorder in a special education setting. Journal of Child and Family Studies, 26(10), 2900–2907. https://doi.org/10.1007/s10826-017-0797-2.
Eyre, O., Hughes, R. A., Thapar, A. K., Leibenluft, E., Stringaris, A., Davey Smith, G., et al. (2019). Childhood neurodevelopmental difficulties and risk of adolescent depression: the role of irritability. Journal of Child Psychology and Psychiatry. https://doi.org/10.1111/j.1440-1754.2010.01750.x.
Fischer, C. S., & Phillips, S. L. (1979). Who is alone? Social characteristics of people with small networks. Berkeley: Institute of Urban and Regional Development, University of California.
Frick, P. J., Barry, C. T., & Kamphaus, R. W. (2009). Self-report inventories. In Clinical Assessment of Child and Adolescent Personality and Behavior (pp. 101–139). Boston: Springer. https://doi.org/10.1007/978-1-4419-0641-0_6.
Fridh, M., Köhler, M., Modén, B., Lindström, M., & Rosvall, M. (2018). Subjective health complaints and exposure to peer victimization among disabled and non-disabled adolescents: a population-based study in Sweden. Scandinavian Journal of Public Health, 46(2), 262–271. https://doi.org/10.1177/1403494817705558.
Gardner, D. M., & Gerdes, A. C. (2015). A review of peer relationships and friendships in youth with ADHD. Journal of Attention Disorders, 19(10), 844–855. https://doi.org/10.1177/1087054713501552.
Goossens, L., Lasgaard, M., Luyckx, K., Vanhalst, J., Mathias, S., & Masy, E. (2009). Loneliness and solitude in adolescence: a confirmatory factor analysis of alternative models. Personality and Individual Differences, 47(8), 890–894.
Grafton, B., & MacLeod, C. (2014). Enhanced probing of attentional bias: the independence of anxiety-linked selectivity in attentional engagement with and disengagement from negative information. Cognition and Emotion, 28(7), 1287–1302. https://doi.org/10.1080/02699931.2014.881326.
Grills, A. E., & Ollendick, T. H. (2002). Peer victimization, global self-worth, and anxiety in middle school children. Journal of Clinical Child and Adolescent Psychology, 31(1), 59–68.
Grygiel, P., Humenny, G., Rębisz, S., Bajcar, E., & Świtaj, P. (2018). Peer rejection and perceived quality of relations with schoolmates among children with ADHD. Journal of Attention Disorders, 22(8), 738–751. https://doi.org/10.1177/1087054714563791.
Gvion, Y., Horresh, N., Levi-Belz, Y., Fischel, T., Treves, I., Weiser, M., David, H. S., Stein-Reizer, O., & Apter, A. (2014). Aggression–impulsivity, mental pain, and communication difficulties in medically serious and medically non-serious suicide attempters. Comprehensive Psychiatry, 55(1), 40–50. https://doi.org/10.1016/j.comppsych.2013.09.003.
Hawkley, L. C., Gu, Y., Luo, Y. J., & Cacioppo, J. T. (2012). The mental representation of social connections: generalizability extended to Beijing adults. PLoS One, 7(9), e44065. https://doi.org/10.1371/journal.pone.0044065.
Heiman, T. (2005). An examination of peer relationships of children with and without attention deficit hyperactivity disorder. School Psychology International, 26(3), 330–339. https://doi.org/10.1177/0143034305055977.
Heinrich, L. M., & Gullone, E. (2006). The clinical significance of loneliness: a literature review. Clinical Psychology Review, 26(6), 695–718. https://doi.org/10.1016/j.cpr.2006.04.002.
Hodgens, J. B., Cole, J., & Boldizar, J. (2000). Peer-based differences among boys with ADHD. Journal of Clinical Child Psychology, 29(3), 443–452. https://doi.org/10.1207/S15374424JCCP2903_15.
Holt-Lunstad, J., Smith, T. B., & Layton, J. B. (2010). Social relationships and mortality risk: a meta-analytic review. PLoS Medicine, 7(7), e1000316. https://doi.org/10.1371/journal.pmed.1000316.
Holt-Lunstad, J., Smith, T. B., Baker, M., Harris, T., & Stephenson, D. (2015). Loneliness and social isolation as risk factors for mortality: a meta-analytic review. Perspectives on Psychological Science, 10(2), 227–237. https://doi.org/10.1177/1745691614568352.
Houghton, S., Hattie, J., Wood, L., Carroll, A., Martin, K., & Tan, C. (2014). Conceptualising loneliness in adolescents: Development and validation of a self-report instrument. Child Psychiatry & Human Development, 45(5), 604–616. https://doi.org/10.1007/s10578-013-0429-z.
Houghton, S., Roost, E., Carroll, A., & Brandtman, M. (2015). Loneliness in children and adolescents with and without attention-deficit/hyperactivity disorder. Journal of Psychopathology and Behavioral Assessment, 37(1), 27–37. https://doi.org/10.1007/s10862-014-9434-1.
Houghton, S., Hattie, J., Carroll, A., Wood, L., & Baffour, B. (2016). It hurts to be lonely! Loneliness and positive mental wellbeing in Australian rural and urban adolescents. Journal of Psychologists and Counsellors in Schools, 26(1), 52–67.
Hoza, B. (2007). Peer functioning in children with ADHD. Journal of Pediatric Psychology, 32(6), 655–663. https://doi.org/10.1093/jpepsy/jsm024.
Hu, L. T., & Bentler, P. M. (1999). Cutoff criteria for fit indexes in covariance structure analysis: conventional criteria versus new alternatives. Structural Equation Modeling: A Multidisciplinary Journal, 6(1), 1–55.
Humphrey, J. L., Storch, E. A., & Geffken, G. R. (2007). Peer victimization in children with attention-deficit hyperactivity disorder. Journal of Child Health Care, 11(3), 248–260. https://doi.org/10.1177/1367493507079571.
Jensen, P. S. (1999). A 14-month randomized clinical trial of treatment strategies for attention-deficit/hyperactivity disorder. Archives of General Psychiatry, 56(12), 1073–1086.
Jerrell, J. M., McIntyre, R. S., & Park, Y. M. M. (2015). Risk factors for incident major depressive disorder in children and adolescents with attention-deficit/hyperactivity disorder. European Child & Adolescent Psychiatry, 24(1), 65–73. https://doi.org/10.1007/s00787-014-0541-z.
Kamphaus, R. W., & Frick, P. J. (2005). Clinical assessment of child and adolescent personality and behavior. Springer Science & Business Media.
Kovacs, M. (2004). Children’s depression inventory (CDI). Toronto: Multi-Health Systems Inc..
La Greca, A. M., & Harrison, H. M. (2005). Adolescent peer relations, friendships, and romantic relationships: do they predict social anxiety and depression? Journal of Clinical Child and Adolescent Psychology, 34(1), 49–61.
Langher, V., Ricci, M. E., Reversi, S., & Krstikj, N. (2009). Adhd and loneliness social dissatisfaction in inclusive school from an individual-context paradigm. Journal of Special Education and Rehabilitation, 10(3–4), 67–88 http://jser.fzf.ukim.edu.mk.
Lasgaard, M., Nielsen, A., Eriksen, M. E., & Goossens, L. (2010). Loneliness and social support in adolescent boys with autism spectrum disorders. Journal of Autism and Developmental Disorders, 40(2), 218–226. https://doi.org/10.1007/s10803-009-0851-z.
Lasgaard, M., Armour, C., Bramsen, R. H., & Goossens, L. (2016). Major life events as predictors of loneliness in adolescence. Journal of Child and Family Studies, 25(2), 631–637. https://doi.org/10.1007/s10826-015-0243-2.
Lawrence, D., Hafekost, J., Johnson, S. E., Saw, S., Buckingham, W. J., Sawyer, M. G., & Zubrick, S. R. (2016). Key findings from the second Australian child and adolescent survey of mental health and wellbeing. Australian & New Zealand Journal of Psychiatry, 50(9), 876–886. https://doi.org/10.1177/0004867415617836.
Lee, S. S., Humphreys, K. L., Flory, K., Liu, R., & Glass, K. (2011). Prospective association of childhood attention-deficit/hyperactivity disorder (ADHD) and substance use and abuse/dependence: a meta-analytic review. Clinical Psychology Review, 31(3), 328–341.
Lindfors, P., Solantaus, T., & Rimpelä, A. (2012). Fears for the future among Finnish adolescents in 1983–2007: from global concerns to ill health and loneliness. Journal of Adolescence, 35(4), 991–999. https://doi.org/10.1016/j.adolescence.2012.02.003.
Lodder, G., Goossens, L., Scholte, R., Engels, R., & Verhagen, M. (2016). Adolescent loneliness and social skills: agreement and discrepancies between self-, meta-, and peer evaluations. Journal of Youth and Adolescence, 45, 2406–2416. https://doi.org/10.1007/s10964-016-0461-y.
Maes, M., Vanhalst, J., Spithoven, A. W., Van den Noortgate, W., & Goossens, L. (2016). Loneliness and attitudes toward aloneness in adolescence: a person-centered approach. Journal of Youth and Adolescence, 45(3), 547–567. https://doi.org/10.1007/s10964-015-0354-5.
Marcoen, A., Goossens, L., & Caes, P. (1987). Loneliness in pre-through late adolescence: exploring the contributions of a multidimensional approach. Journal of Youth and Adolescence, 16(6), 561–577. https://doi.org/10.1007/BF02138821.
Margalit, M., & Al-Yagon, M. (2002). The loneliness experience of children with learning disabilities. The Social Dimensions of Learning Disabilities, 53–75.
Matthews, T., Danese, A., Wertz, J., Ambler, A., Kelly, M., Diver, A., Caspi, A., Moffitt, T. E., & Arseneault, L. (2015). Social isolation and mental health at primary and secondary school entry: a longitudinal cohort study. Journal of the American Academy of Child & Adolescent Psychiatry, 54(3), 225–232. https://doi.org/10.1016/j.jaac.2014.12.008.
Mayes, S. D., Calhoun, S. L., & Crowell, E. W. (2000). Learning disabilities and ADHD: overlapping spectrum disorders. Journal of Learning Disabilities, 33(5), 417–424. https://doi.org/10.1177/002221940003300502.
McQuade, J. D., & Hoza, B. (2008). Peer problems in attention deficit hyperactivity disorder: current status and future directions. Developmental Disabilities Research Reviews, 14(4), 320–324. https://doi.org/10.1002/ddrr.35.
Merikangas, K. R., Nakamura, E. F., & Kessler, R. C. (2009). Epidemiology of mental disorders in children and adolescents. Dialogues in Clinical Neuroscience, 11(1), 7–20.
Mrug, S., Molina, B. S., Hoza, B., Gerdes, A. C., Hinshaw, S. P., Hechtman, L., & Arnold, L. E. (2012). Peer rejection and friendships in children with attention-deficit/hyperactivity disorder: contributions to long-term outcomes. Journal of Abnormal Child Psychology, 40(6), 1013–1026. https://doi.org/10.1007/s10802-012-9610-2.
Muthén, L. K., & Muthén, B. (2019). Mplus. The comprehensive modelling program for applied researchers: user’s guide, 5.
Newland, L. A., Giger, J. T., Lawler, M. J., Roh, S., Brockevelt, B. L., & Schweinle, A. (2019). Multilevel analysis of child and adolescent subjective well-being across 14 countries: child-and country-level predictors. Child Development, 90(2), 395–413. https://doi.org/10.1111/cdev.13134.
Normand, S., Schneider, B. H., Lee, M. D., Maisonneuve, M. F., Kuehn, S. M., & Robaey, P. (2011). How do children with ADHD (mis) manage their real-life dyadic friendships? A multi-method investigation. Journal of Abnormal Child Psychology, 39(2), 293–305. https://doi.org/10.1007/s10802-010-9450-x.
Patel, V., Flisher, A. J., Hetrick, S., & McGorry, P. (2007). Mental health of young people: a global public-health challenge. The Lancet, 369(9569), 1302–1313.
Patton, G. C., Sawyer, S. M., Santelli, J. S., Ross, D. A., Afifi, R., Allen, N. B., et al. (2016). Our future: a lancet commission on adolescent health and wellbeing. The Lancet, 387(10036), 2423–2478. https://doi.org/10.1016/S0140-6736(16)00579-1.
Prinstein, M. J., Rancourt, D., Guerry, J. D., & Browne, C. B. (2009). Peer reputations and psychological adjustment. In K. H. Rubin, M. Bukowski, & B. Laursen (Eds.), Handbook of peer interactions, relationships, and groups (pp. 548–567). New York: Guilford.
Qualter, P., & Munn, P. (2002). The separateness of social and emotional loneliness in childhood. Journal of Child Psychology and Psychiatry, 43(2), 233–244.
Qualter, P., Brown, S. L., Rotenberg, K. J., Vanhalst, J., Harris, R. A., Goossens, L., Bangee, M., & Munn, P. (2013). Trajectories of loneliness during childhood and adolescence: predictors and health outcomes. Journal of Adolescence, 36(6), 1283–1293. https://doi.org/10.1016/j.adolescence.2013.01.005.
Qualter, P., Vanhalst, J., Harris, R., Van Roekel, E., Lodder, G., Bangee, M., et al. (2015). Loneliness across the life span. Perspectives on Psychological Science, 10(2), 250–264. https://doi.org/10.1177/1745691615568999.
Riva, P., Wesselmann, E. D., Wirth, J., Carter-Sowell, A., & Williams, K. (2014). When pain does not heal. The common antecedents and consequences of chronic social and physical pain. Basic and Applied Social Psychology, 36(4), 329–346.
Rose, A. J., & Rudolph, K. D. (2006). A review of sex differences in peer relationship processes: potential trade-offs for the emotional and behavioral development of girls and boys. Psychological Bulletin, 132(1), 98–131. https://doi.org/10.1037/0033-2909.132.1.98.
Rubia, K., Criaud, M., Wulff, M., Alegria, A., Brinson, H., Barker, G., Stahl, D., & Giampietro, V. (2019). Functional connectivity changes associated with fMRI neurofeedback of right inferior frontal cortex in adolescents with ADHD. NeuroImage, 188, 43–58. https://doi.org/10.1016/j.neuroimage.2018.11.055.
Schmidt, M. E., & Bagwell, C. L. (2007). The protective role of friendships in overtly and relationally victimized boys and girls. Merrill-Palmer Quarterly (1982-), 439–460. https://doi.org/10.1353/mpq.2007.0021.
Sigstad, H. M. H. (2016). Significance of friendship for quality of life in adolescents with mild intellectual disability: a parental perspective. Journal of Intellectual & Developmental Disability, 41(4), 289–298. https://doi.org/10.3109/13668250.2016.1200018.
Stickley, A., Koposov, R., Koyanagi, A., Inoue, Y., & Ruchkin, V. (2019). ADHD and depressive symptoms in adolescents: the role of community violence exposure. Social Psychiatry and Psychiatric Epidemiology, 54(6), 683–691.
Swords, L., Heary, C., & Hennessy, E. (2011). Factors associated with acceptance of peers with mental health problems in childhood and adolescence. Journal of Child Psychology and Psychiatry, 52(9), 933–941. https://doi.org/10.1111/j.1469-7610.2010.02351.x.
Tannock, R. (1998). Attention deficit hyperactivity disorder: advances in cognitive, neurobiological, and genetic research. The Journal of Child Psychology and Psychiatry and Allied Disciplines, 39(1), 65–99. https://doi.org/10.1017/S0021963097001777.
Taylor, L. A., Saylor, C., Twyman, K., & Macias, M. (2010). Adding insult to injury: bullying experiences of youth with attention deficit hyperactivity disorder. Children's Health Care, 39(1), 59–72. https://doi.org/10.1080/02739610903455152.
van Dulmen, M. H., & Goossens, L. (2013). Loneliness trajectories. Journal of Adolescence, 36, 1247–1249. https://doi.org/10.1016/j.adolescence.2013.08.001.
van Roekel, E., Verhagen, M., Engels, R. C., Scholte, R. H., Cacioppo, S., & Cacioppo, J. T. (2018). Trait and state levels of loneliness in early and late adolescents: examining the differential reactivity hypothesis. Journal of Clinical Child & Adolescent Psychology, 47(6), 888–899. https://doi.org/10.1080/15374416.2016.1146993.
van Rooij, D., Hoekstra, P. J., Mennes, M., von Rhein, D., Thissen, A. J., Heslenfeld, D., et al. (2015). Distinguishing adolescents with ADHD from their unaffected siblings and healthy comparison subjects by neural activation patterns during response inhibition. American Journal of Psychiatry, 172(7), 674–683. https://doi.org/10.1176/appi.ajp.2014.13121635.
Vannucci, A., Finan, L., Ohannessian, C. M., Tennen, H., De Los Reyes, A., & Liu, S. (2019). Protective factors associated with daily affective reactivity and instability during adolescence. Journal of Youth and Adolescence, 48(4), 771–787. https://doi.org/10.1007/s10964-018-0943-1.
Walker, J. S., Coleman, D., Lee, J., Squire, P. N., & Friesen, B. J. (2008). Children's stigmatization of childhood depression and ADHD: magnitude and demographic variation in a national sample. Journal of the American Academy of Child & Adolescent Psychiatry, 47(8), 912–920. https://doi.org/10.1097/CHI.0b013e318179961a.
Wehmeier, P. M., Schacht, A., & Barkley, R. A. (2010). Social and emotional impairment in children and adolescents with ADHD and the impact on quality of life. Journal of Adolescent Health, 46(3), 209–217. https://doi.org/10.1016/j.jadohealth.2009.09.009.
Witkow, M. R., & Fuligni, A. J. (2010). In-school versus out-of-school friendships and academic achievement among an ethnically diverse sample of adolescents. Journal of Research on Adolescence, 20(3), 631–650. https://doi.org/10.1111/j.1532-7795.
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This study was funded by a grant through the Western Australian Health Promotion Foundation (Healthway) (#22951) to Stephen Houghton as principal investigator.
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Houghton, S., Lawrence, D., Hunter, S.C. et al. Loneliness Accounts for the Association Between Diagnosed Attention Deficit-Hyperactivity Disorder and Symptoms of Depression Among Adolescents. J Psychopathol Behav Assess 42, 237–247 (2020). https://doi.org/10.1007/s10862-020-09791-x
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DOI: https://doi.org/10.1007/s10862-020-09791-x