Coplan, R.J., Degroot, M., Nolan, A., Stone, A., Cheng, T., & McVarnock, A. (in press). Experiences of solitude in adolescence. In E. Sloe and M. Bekkhus (Eds.), Adolescent development in a changing world: A cross-cultural perspective. Routledge.
Coplan, R.J., Zelenski, J.M., & Bowker, J.C. (2024). Solitude. In J.E. Maddux (Ed.), Subjective well-being and life satisfaction: A social psychological perspective (2nd Edition) (pp. 202-222). Routledge. https://doi.org/10.4324/9781003393368
Coplan, R.J. & Ooi. L. (2023). Young children’s peer relations: Links with early developing anxiety and depression. In Tremblay, R.E., Boivin, M., & Peters, RDev. (Eds.), Rapee, R.M. (Topic Ed). Encyclopedia on Early Childhood Development (2nd Ed) [on-line]. Centre of Excellence for Early Childhood Development and Strategic Knowledge Cluster on Early Child Development. https://www.child-encyclopedia.com/anxiety-and-depression/according-experts/young-childrens-peer-relations-links-early-developing.
Zava, F., Sette, S., Baumgartner, E., & Coplan, R.J. (2022). Social withdrawal. In M. Prinstein (Section Ed.) The encyclopedia of child and adolescent health. Elsevier. Advance on-line publication. https://doi.org/10.1016/B978-0-12-818872-9.00040-6
Bowker, J.C, Coplan, R.J., Smith, K.A., & Rubin, K.H. (2022). Social withdrawal and shyness. In P.K. Smith & C. Hart (Eds.), Blackwell handbook of childhood social development (3rd Edition) (pp. 503-519). Wiley-Blackwell.
Coplan, R.J., Bowker, J.C., & Nelson, L.J. (2021). Alone again: Revisiting psychological perspectives on solitude. In R.J. Coplan, J.C. Bowker, & L.J. Nelson (Eds.), The handbook of solitude: Psychological perspectives on social Isolation, social withdrawal, and the experience of being alone (2nd Edition) (pp. 3-15). Wiley-Blackwell.
Coplan, R.J., Ooi, L.L., & Hipson, W.E. (2021). Solitary activities from early childhood to adolescence: Causes, content, and consequences. In R.J. Coplan, J.C. Bowker, & L.J. Nelson (Eds.), The handbook of solitude: Psychological perspectives on social Isolation, social withdrawal, and the experience of being alone (2nd Edition) (pp. 105-116). Wiley-Blackwell.
Coplan, R.J. (2020). Play skills for shy preschoolers: A social skills training and facilitated play (SST-FP) early intervention program. In D.W. Nangle, C.A. Erdley, & R.A. Schwatz-Mette (Eds.), Social skills across the lifespan: Theory, assessment, and intervention (pp 165-179). Elsevier.
Coplan, R.J., Baldwin, D., & Wood, K.R. (2020). Shy but getting by: Protective factors in the links between childhood shyness and indices of socio-emotional functioning. In L.A. Schmidt & K.L. Poole (Eds.), Adaptive shyness: Multiple perspectives on behavior and development (pp. 63-87). Springer.
Robert J Coplan, PhD 