Today our article, “Optimism Bias is Both a Cross-Sectional and a Longitudinal Predictor of Positive Mood”, is published in the Journal of Happiness Studies!

This paper presents three reanalyses of recent studies I ran with students, hence the long author list. These findings were the springboard for my current TÃœBÄ°TAK-funded project, so I’m very happy they are making their public debut!

The article is freely accessible here.

Booth, R.W., Şengül, E., Aydın, G.N., Başara, B., Erhan, K., Erkocaoğlan, O., Kuşpınar, H., Yaldırak, K., & Yılmaz, C. (2026). Optimism Bias is Both a Cross-Sectional and a Longitudinal Predictor of Positive Mood. Journal of Happiness Studies, 27, 126 (2026). https://doi.org/10.1007/s10902-026-01110-7

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