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Kaczmarek, L.D., Kashdan, T.B., Drążkowski, D., Enko, J., Kosakowski, M., Szäefer, A., & Bujacz, A. (2015). Why do people prefer gratitude journaling over gratitude letters? The influence of individual differences in motivation and personality on web-based interventions. Personality and Individual Differences, 75, 1-6 . doi: 10.1016/j.paid.2014.11.004

Bujacz, A., Vittersø, J., Huta, V., & Kaczmarek, L.D. (2014). Measuring hedonia and eudaimonia as motives for activities: Cross-national investigation through traditional and Bayesian structural equation modeling. Front. Psychol. 5:984. doi: 10.3389/fpsyg.2014.00984 

Bujacz, A., Dunne, S., Fink, D., Gatej, A. R., Karlsson, E., Ruberti, V., & Wronska, M. K. (2014). Does creativity make you happy? The influence of creative activity on hedonic and eudaimonic well-being. Journal of European Psychology Students, 5 (2), 19-23. doi:

Kaczmarek, L. D., Kashdan, T., Drążkowski, D., Bujacz, A., & Goodman, F. (2014). Why do greater curiosity and fewer depressive symptoms predict gratitude intervention use? Utility beliefs, social norm beliefs, and perceived self-control. Personality and Individual Differences, 66, 165-170. doi: 10.1016/j.paid.2014.03.032

Kaczmarek, L. D., Bujacz, A., & Eid, M. (2014). Comparative latent state-trait analysis of satisfaction with life measures: The Steen Happiness Index and the Satisfaction with Life Scale. Journal of Happiness Studies. Advance online publication. doi: 10.1007/s10902-014-9517-4

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