Chia, Jonathan L., Lua, Verity, and Hartanto, Andree (2025) A lifespan perspective on positive affect fluctuations on purpose in life: findings from a 9-year longitudinal study. Journal of Positive Psychology. (In Press)

Chia, Jonathan L., Hartanto, Andree, and Tov, William (2025) Supporting Satisfaction, Satisfying Support: Bidirectional Associations of Social Support and Life Satisfaction. Social Psychological and Personality Science, 16 (7). pp. 758-768.

Chen, Nicole, Majeed, Nadyanna, Goh, Adalia, Koh, Paye Shin, Chia, Jonathan L., and Hartanto, Andree (2024) Dispositional optimism, sleep, and trait affective mediators: A latent variable approach. Personality and Individual Differences, 230. 112801.

Hartanto, Andree, Lua, Verity Y.Q., Kasturiratna, K.T.A. Sandeeshwara, Koh, Paye Shin, Tng, Germaine Y.Q., Kaur, Manmeet, Quek, Frosch Y.X., Chia, Jonathan L., and Majeed, Nadyanna (2024) The Effect of Mere Presence of Smartphone on Cognitive Functions: A Four-Level Meta-Analysis. Technology, Mind, and Behavior, 5 (1).

Chia, Jonathan L., Hartanto, Andree, and Tov, William (2024) Profiles of Activity Engagement and Depression Trajectories as COVID-19 Restrictions Were Relaxed. Psychology and Aging, 39 (1). pp. 31-45.

Chia, Jonathan L., Hartanto, Andree, and Tov, William (2024) Retirement and life satisfaction among middle-aged and older adults: A piecewise growth mixture analysis. Psychology and Aging, 39 (8). pp. 915-932.

Majeed, Nadyanna, Sandeeshwara, K.T.A. Sandeeshwara, Li, Ming Yao, Chia, Jonathan L., Lua, Verity Y.Q., and Hartanto, Andree (2023) COVID-19 stress and cognitive failures in daily life: A multilevel examination of within- and between-persons patterns. Journal of Pacific Rim Psychology, 17.

Kiah, Savannah Kiah Siew, Chia, Jonathan Lpuis, Mahendran, Rathi, and Yu, Junhong (2022) Older adults’ perceptions of government handling of COVID-19: Predictors of protective behaviors from lockdown to post-lockdown. PLoS ONE, 17 (2). e0263039.

Chia, Jonathan L., and Hartanto, Andree (2021) Cognitive Barriers to COVID-19 Vaccine Uptake Among Older Adults. Frontiers in Medicine, 8. 756275.

Chia, Jonathan L., and Hartanto, Andree (2021) Older Adult Employment Status and Well-Being: A Longitudinal Bidirectional Analysis. International Journal of Environmental Research and Public Health, 18 (23). 12533.