Bowker, J.C., Sette, S., Ooi, L.L., Bayram-Ozdemir, S., Braathu, N., Bølstad, E., Castillo, K.N., Dogan, A., Greco, C. Kamble, S., Kim, H.K., Kim, Y., Liu, J., Oh, W., Rapee, R.M., Wong, Q.J.J., Xiao, B, Zuffianò, A, & Coplan, R.J. (2023). Cross-cultural measurement of social withdrawal motivations across ten countries using multiple-group factor analysis alignment. Advance on-line publication.  International Journal of Behavioral Development, 47(2), 190-198. https://doi.org/10.1177/01650254221132774

Yang, P., Coplan, R.J., Zhang, Y., Ding, X., & Zhu, Z. (2023). Assessment and implications of aloneliness in Chinese children and early adolescents. Journal of Applied Developmental Psychology, 85, 101514. https://doi.org/10.1037/cbs0000369

Baardstu, S., Coplan, R.J., Eliassen, E., Brandlistuen, R.E., & Wang, M.V. (2022). Exploring the role of teacher-child relationships in the longitudinal associations between childhood shyness and social functioning at school: A prospective cohort study. School Mental Health, 14, 984-996 [Special Issue on School Relationships]. https://doi.org/10.1007/s12310-022-09518-1

Bekkhus, M., Baldwin, D., Coplan, R.J., von Soest, T., Skaret, S., Ulset, V., & Borge, A.I.H. (2022). Examining launch and snare effects in the longitudinal associations between shyness and socio-emotional difficulties in childhood. Social Development, 31(1), 109-125. https://doi.org/10.1111/sode.12528

Bullock, A., Xiao, B., Liu, J., Coplan, R.J., & Chen, X. (2022). Shyness, parent-child relationships, and peer difficulties during the middle school transition. Journal of Child and Family Studies, 31(1), 86-98. https://doi.org/10.1007/s10826-021-01979-3

Coplan, R.J., McVarnock, A., Hipson, W.E., & Bowker, J.C. (2022). Alone with my phone? Examining beliefs about solitude and technology use in adolescence. International Journal of Behavioral Development, 46(6), 481-489 [Special Issue: Solitude Across the Lifespan] https://do.org/10.1177/01650254221113460

Ding, X., Zhang, W., Ooi, L.L., Coplan, R.J., Zhang, S., & Dong, Q. (2022). Longitudinal relations between social avoidance, academic achievement, and adjustment in Chinese children. Journal of Applied Developmental Psychology, 79, 101385. https://doi.org/10.1016/j.appdev.2021.101385

Hu, N., Gangmin, X., Chen, X., Yuan, M., Liu, J., Coplan, R.J., Li, D. & Chen, X. (2022). A parallel latent growth model of affinity for solitude and depressive symptoms among Chinese early adolescents. Journal of Youth & Adolescence, 51(5), 904-914. https://doi.org/10.1007/s10964-022-01595-4

Janus, M., Ryan, J., Pottruff, M., Reid-Westoby, C., Brownell, M., Bennett, T., Birken, C.S., Duku, E., Ferro, M.A., Forer, B., Georgiades, S., Gorter, J.W., Guhn, M., Maguire, J., Manson, H., Pei, J. Santos, R, & Coplan, R.J. (2022). Population-based teacher-rated assessment of anxiety among Canadian kindergarten children. Child Psychiatry and Human Development. Advance on-line publication. https://doi.org/10.1007/s10578-022-01332-9

Mjelve, L.H., Nyborg, G., Arnesen, A., Bjørnebekk, G., Crozier, R., & Coplan, R.J. (2022). Teachers’ strategies for managing shy students’ anxiety at school. Nordic Psychology. Advanced on-line publication. https://doi.org/10.1080/19012276.2022.2058072

Mjelve, L.H., Nyborg, G., Arnesen, A., Bjørnebekk, G., Crozier, R., & Coplan, R.J. (2022). Characteristics of teacher-nominated shy students in Norwegian elementary schools. Journal of Research in Childhood Education. Advanced on-line publication. https://doi.org/10.1080/02568543.2022.2027582

Nyborg, G., Mjelve, L.H., Edwards, A., Crozier, W. R., & Coplan, R.J. (2022). Working relationally with shy students: Pedagogical insights from teachers and students. Learning, Culture, and Social Interaction, 33, 100610. https://doi.org/10.1016/j.lcsi.2022.100610

Sette, S., Zava, F., Baumgartner, E., Laghi, F., & Coplan, R.J. (2022). Examining links between social withdrawal subtypes and internalizing problems among Italian primary school children. European Journal of Developmental Psychology. Advance on-line publication. https://doi.org/10.1080/17405629.2022.2086118

Sette, S., Zava, F., Baumgartner, Laghi. F. & Coplan, R.J. (2022). Exploring the role of play behaviors in the links between preschoolers’ shyness and teacher-child relationships. Early Education and Development, 33(2), 187-203. https://doi.org/10.1080/10409289.2021.1885237 

Xiao, B., Zhu, L., Kong, X., Li, Y. & Coplan, R.J. (2022). Shyness and socio-emotional adjustment in early childhood in mainland China: Exploring the roles of maternal parenting practices and beliefs about shyness. Journal of Child and Family Studies. Advance on-line publication. https://doi.org/10.1007/s10826-022-02416-9

White, H.I., Bowker, J.C., Adams, R.E., & Coplan, R.J. (2022). Solitude and affect during emerging adulthood: When, and for whom, spending time alone is related to positive and negative affect during social interactions. International Journal of Behavioral Development, 46(6), 490-499. [Special Issue: Solitude Across the Lifespan]. https://doi.org/10.1177/01650254221133296

Zheng, K., , R.J., Chen, X., & Bian, Y. (2022). Longitudinal associations between depressive symptoms and preference for solitude among Chinese early adolescents: Separating between-person from within-person effects. Journal of Early Adolescence. Advance on-line publication. https://doi.org/10.1177/02724316221124794

Coplan, R.J., Hipson, W.E., & Bowker, J.C. (2021). Social withdrawal and aloneliness in adolescence: Examining the implications of too much and not enough solitude. Journal of Youth and Adolescence, 50(6), 1219-1233. https://doi.org/10.1007/s10964-020–1365-0

Hipson, W.E., Coplan, R.J., Dufour, M., Watanabe, L.K., Wood, K.R., & Bowker, J.C. (2021). Time alone well spent? A person-oriented analysis of adolescents’ solitary activities. Social Development. Advance online publication. https://doi.org/10.1111/sode.12518

Hipson, W.E., Kiritchenko, S., Mohammad, S.M., & Coplan, R.J. (2021). Examining the language of solitude vs. loneliness in tweets. Journal of Social and Personal Relationships, 38(5), 1596-1610. https://doi.org/10.1177/0265407521998460

Nguyen, K., Coplan, R.J., Archbell, K., & Rose-Krasnor, L. (2021). Coaches’ beliefs about shy children and adolescents in the context of team sports. International Sport Coaching Journal, 8(3), 328-337. https://doi.org/10.1123/iscj.2020-0078

Xiao, B., Bullock, A., Liu, J., & Coplan, R.J. (2021). Unsociability, peer rejection, and loneliness in Chinese early adolescents: Testing a cross-lagged model. Journal of Early Adolescence, 41(6), 865-886. https://doi.org/10.1177/0272431620961457

Wood, K.R., Coplan, R.J., Hipson, W.E., & Bowker, J.C. (2021). Normative beliefs about social withdrawal in adolescence. Journal of Research on Adolescence, 32(1), 372-381. https://doi.org/10.1111/jora.12617

Zava, F., Sette, S., Baumgartner, & Coplan, R.J. (2021). Shyness and empathy in early childhood: Examining links between feelings of empathy and empathetic behaviours. British Journal of Developmental Psychology, 39(1), 54-77. https://doi.org/10.1111/bjdp.12347

Zhong, J., Liu, J., Xu, G., Zheng, H., Bowker, J.C., & Coplan, R.J. (2021). Measurement invariance of two different short forms of the Social Interaction Anxiety Scale (SIAS) and Social Phobia Scale (SPS) in Chinese and American samples. European Journal of Psychological Assessment. Advance online publication. https://doi.org/10.1027/1015-5759/a000689

Zhu, J., Ooi, L.L., Wu, M., Li, Y., Coplan, R.J., & Cao, Y. (2021). Exploring the links between unsociability, parenting behaviors, and socio-emotional functioning in young children in suburban China. Early Education and Development, 32(7), 963-980. https://doi.org/10.1080/10409289.2020.1821538

Archbell, K.A., Coplan, R.J., & Rose-Krasnor, L. (2020). What did your child do today? Describing young children’s daily activities outside of school. Journal of Early Childhood Research, 18, 189-199.

Baardstu, S., Coplan, R.J., Karevold, E.B., Laceulle, O.M., & von Soest, T. (2020). Longitudinal pathways from shyness in early childhood to personality in adolescence: Do peers matter? Journal of Research on Adolescence, 30(2), 362-379. https://doi.org/10.1111/jora.12482

Bowker, J.C., Ooi, L.L., Coplan, R.J., & Etkin, R.G. (2020). When is it okay to be alone? Gender differences in normative beliefs about social withdrawal. Sex Roles, 82, 482-492.

Bullock, A., Xiao, B., Xu, G., Lui, J., Coplan, R.J., & Chen, X. (2020). Unsociability, peer relations, and psychological maladjustment among children: A moderated-mediated model. Social Development, 29(4). 1014-1030. https://doi.org/10.1111/sode.12444

Kirkpatrick, A., Rose-Krasnor, L., Ooi, L.L., & Coplan, R.J. (2020). Coaching the quiet: Exploring coaches’ beliefs about shy children in a sports context. Psychology of Sports and Exercise, 47, 101640. doi: 10.1016/j.psychsport.2019.101640

Zava, F., Watanabe, L.K., Sette, S., Baumgartner, E., Laghi, F. & Coplan, R.J. (2020). Young children’s perceptions and beliefs about hypothetical shy, unsociable, and socially avoidant peers at school. Social Development, 29, 89-109.

Coplan, R.J., Hipson, W.E., Archbell, K.A., Ooi, L.L., Baldwin, D., & Bowker, J.C. (2019). Seeking more solitude: Conceptualization, assessment, and implications of aloneliness. Personality and Individual Differences, 148, 17-26.

Coplan, R.J., Ooi, L.L., & Baldwin, D. (2019). Does it matter when we want to be alone? Exploring developmental timing effects in the implications of unsociability. New Ideas in Psychology [Special Issue: Personality Development from Multiple Perspectives and Contexts], 53, 47-57.

Ding, X., Coplan, R.J., Deng, X., Ooi, L.L., Li, D., & Sang, B. (2019). Sad, scared, or rejected? A short-term longitudinal study of the predictors of social avoidance in Chinese children. Journal of Abnormal Child Psychology, 47, 1265-1276.