Emerging adulthood (i.e., late teens to the late 20s; Arnett and Fishel 2013) is a time during which many changes occur (Arnett 2000). One significant change that many emerging adults experience is the transition to university. Although many students do well in university, others experience adjustment difficulties which can persist and extend to adulthood (e.g., Arnett 2000; Erikson 1968). Data from the Stressed@Brock study outlined several risk factors, across multiple contexts (e.g., academic, social, intrapersonal), that predicted university students’ psychosocial adjustment over time. Survey data and academic grades (obtained with students’ permission from the Registrar) were collected annually for 7 years (2010 - 2016).
Peer-Reviewed Publications for Stressed@Brock Study
- Hamza, C., & Willoughby, T. (revised and resubmitted). Impulsivity and nonsuicidal self-injury: A longitudinal examination among emerging adults.
- Ewing, L., Hamza, C., & Willoughby, T. (revised and resubmitted). Stressful experiences, emotion dysregulation, and nonsuicidal self-injury among university students.
- Daly, O., & Willoughby, T. (2019). A longitudinal study investigating bidirectionality among nonsuicidal self-injury, self-criticism, and parental criticism. Psychiatry Research, 271, 678-683.
- Heffer, T., Good, M., Daly, O., MacDonell, E., & Willoughby, T. (2019). The longitudinal association between social media use and depressive symptoms among adolescents and young adults: An empirical reply to Twenge et al. Clinical Psychological Science.
- Semplonius, T., & Willoughby, T. (2018). A person-centred analysis of sleep and emotion dysregulation: Short- and long-term links with depression and alcohol use. Journal of American College Health.
- Brook, C., & Willoughby, T. (2018). Shyness and social anxiety assessed through self-report: Are we measuring one construct? Journal of Personality Assessment.
- Hamza, C., & Willoughby, T. (2018). A lab-based study exploring the associations among nonsuicidal self-injury, pain, and emotion among university students. Psychiatry Research, 269, 462-468.
- Heffer, T., & Willoughby, T. (2018). The role of emotion dysregulation: A longitudinal
- investigation of the Interpersonal Theory of Suicide. Psychiatry Research, 260, 379-383.
- Semplonius, T., & Willoughby, T. (2018). Long-term links between physical activity and sleep quality. Medicine & Science in Sports & Exercise, 50(12), 2418-2424.
- Semplonius, T., & Willoughby, T. (2018). Psychosocial adjustment throughout university: A longitudinal investigation of the roles of sleep quality and emotion dysregulation. Journal of Youth and Adolescence, 47, 1267-1278.
- Heffer, T., & Willoughby, T. (2017). A count of coping strategies: A longitudinal study investigating repertoire richness and adjustment. PLOS ONE, 12(10): e0186057. doi: https://doi.org/10.1371/journal.pone.0186057
- Good, M., Hamza, C.A., & Willoughby. T. (2017). A longitudinal investigation of the relation
- between nonsuicidal self-injury and spirituality/religiosity among university students.
- Psychiatry Research, 250, 106-112d soi: https://doi.org/10.1016/j.psychres.2017.01.062
- Hamza, C.A., & Willoughby. T. (2016). Nonsuicidal self-injury and suicidal risk among emerging adults. Journal of Adolescent Health, 59(4), 411-416.doi: http://dx.doi.org/10.1016/j.jadohealth.2016.05.019
- Adachi, P.J.C., Hodson, G., Willoughby, T., Blank, C., & Ha, A. (2016). From outgroups to allied forces: The effect of intergroup cooperation in violent and non-violent video games on prejudice bias reduction. Journal of Experimental Psychology: General, 145(3), 259-265.doi: 10.1037/xge0000145
- Adachi, P.J.C., & Willoughby, T. (2016). Does competitiveness in violent and non-violent video games predict aggression over time? Child Development, 87(6), 1877-1892.doi: 10.1111/cdev.12556
- Brook, C., & Willoughby, T. (2016). Social anxiety and alcohol use across the university years: Adaptive and maladaptive groups. Developmental Psychology, 52(5), 835-845. doi: 10.1037/dev0000110
- Adachi, P.J.C., & Willoughby, T. (2016). Does playing sports video games predict increased involvement in real sports over several years among young adults? Journal of Youth and Adolescence, 45(2), 391-401.doi: 10.1007/s10964-015-0312-2
- Tavernier, R., Munroe, M., & Willoughby, T. (2015). Perceived morningness-eveningness predicts academic adjustment and substance use across university, but social jetlag is not to blame.Chronobiology International, 32(9), 1233-1245. doi:10.3109/07420528.2015.1085062
- Adachi, P.J.C., & Willoughby, T.(2015). From the couch to the sports field: The longitudinal associations between sports video game play, self-esteem, and involvement in sports. Psychology of Popular Media Culture, 44(4), 329-341. doi:org/10.1037/ppm0000042
- Brook, C., & Willoughby, T. (2015). The social ties that bind: Linking social anxiety with academic achievement across the university years. Journal of Youth and Adolescence, 44(5), 1139-1152.doi:10.1007/s10964-015-0262-8.
- Tavernier, R., & Willoughby, T. (2015). A longitudinal examination of the bidirectional association between sleep problems and social ties at university: The mediating role of emotion regulation. Journal of Youth and Adolescence, 44(2), 317-330.doi: 10.1007/s10964-014-0107-x.
- Willoughby, T., Heffer, T., & Hamza, C. (2015). The link between nonsuicidal self-injury and acquired capability for suicide: A longitudinal study. Journal of Abnormal Psychology, 124(4), 1110-1115. doi: http://dx.doi.org/10.1037/abn0000104
- Semplonius, T., Good, M., & Willoughby, T. (2014). Religious and non-religious activity engagement as assets in promoting social ties in university: The role of emotion regulation. Journal of Youth and Adolescence, 44(8), 1592-1606. doi:10.1007/s10964-014-0200-1
- Armiento, J., Hamza, C., & Willoughby, T. (2014). An examination of disclosure of nonsuicidal self-injury among university students. Journal of Community & Applied Social Psychology, 24(6), 518-533.doi: 10.1002/casp.2190.
- Willoughby, T., & Fortner, A. (2014). At-risk depressive symptoms and alcohol use trajectories in adolescence: A person-centred analysis of co-occurrence. Journal of Youth and Adolescence, 44(4), 793-805.doi: 10.1007/s10964-014-0106-y.
- Tavernier, R., & Willoughby, T. (2014). Sleep problems: Predictor or outcome of media use among emerging adults at university. Journal of Sleep Research, 23(4), 389-396.doi: 10.1111/jsr.12132.
- Hamza, C., & Willoughby, T. (2014). A longitudinal person-centred examination of nonsuicidal self-injury among university students. Journal of Youth and Adolescence, 43(4), 671-685.doi:10.1007/s10964-013-9991-8.
- Adachi, P.J.C., & Willoughby, T. (2014). It’s not how much you play, but how much you enjoy the game: The longitudinal associations between frequency versus enjoyment of adolescent sports involvement and self-esteem. Journal of Youth and Adolescence, 43(1), 137-145. doi:10.1007/s10964-013-9988-3.
- DesRoches, A. & Willoughby, T. (2014). Bidirectional associations between valued activities and adolescent positive adjustment in a longitudinal study: Positive mood as a mediator. Journal of Youth and Adolescence, 43(2), 208-220. doi: 10.1007/s10964-013-9957-x.
- Tavernier, R., & Willoughby, T. (2014). Bidirectional associations between sleep (quality and duration) and psychosocial adjustment among emerging adults across the first three years of university. Developmental Psychology, 50(3), 674-682. doi:10.1037/a0034258.
- Tavernier, R., & Willoughby, T. (2014). Are all evening-types doomed? Latent class analyses of morningness-eveningness, sleep, and psychosocial functioning. Chronobiology International, 31(2), 232-242.doi: 10.3109/07420528.2013.843541
- Adachi, P.J.C., & Willoughby, T. (2013). Demolishing the competition: The longitudinal link between competitive video games, competitive gambling, and aggression. Journal of Youth and Adolescence, 42(7), 1090-1104. doi: 10.1007/s10964-013-9952-2.
- Adachi, P.J.C., & Willoughby, T. (2013). More than just fun and games: The longitudinal relation between strategic video games, problem solving skills, and academic marks. Journal of Youth and Adolescence, 42(7), 1041-1052.doi: 10.1007/s10964-013-9913-9.
- Hamza, C., & Willoughby, T. (2013). Nonsuicidal self-injury and suicidal behavior: A latent class analysis among young adults. PLOS ONE. doi: 10.1371/journal.pone.0059955.
- Hamza, C., Willoughby, T., & Good, M. (2013). A preliminary examination of the specificity of the functions of nonsuicidal self-injury among a sample of university students. Psychiatry Research, 205, 172-175.doi: 10.1016/j.psychres.2012.08.036.
- Hooshmand, S., Willoughby, T., & Good, M. (2012).Do bidirectional associations between depressive symptoms and health risk behaviors differ by behavior? A longitudinal study across adolescence. Journal of Adolescent Health, 50(2), 140-147. doi: 10.1016/j.jadohealth.2011.05.016.
The Adolescent Development Lab is a member of the Jack and Nora
Walker, Canadian Centre for Lifespan Development Research, where
we work closely with other Lifespan members. Learn more about
the Centre for Lifespan Development Research.