Becoming happier takes both a will and a proper way: An experimental longitudinal intervention to boost well-being
Lyubomirsky, Dickerhoof, Boehm and Sheldon, Emotion 11(2), 2011, 391-402. Eight-month experiment on regularly practising two assigned positive activities, expressing optimism and gratitude. Self-selection (joining knowing the study was about happiness) and continued effort made a difference in the activity conditions and not in the control. Authors conclude the activities are more than placebos and work best when participants know about, endorse and commit to them. Eight months.
Lyubomirsky, Dickerhoof, Boehm and Sheldon, Emotion 11(2), 2011, 391-402. Eight-month experiment on regularly practising two assigned positive activities, expressing optimism and gratitude. Self-selection (joining knowing the study was about happiness) and continued effort made a difference in the activity conditions and not in the control. Authors conclude the activities are more than placebos and work best when participants know about, endorse and commit to them. Eight months.
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Lyubomirsky, S., Dickerhoof, R., Boehm, J. K., & Sheldon, K. M. (2011). Becoming happier takes both a will and a proper way: An experimental longitudinal intervention to boost well-being. Emotion, 11(2), 391-402. doi:10.1037/a0022575 https://doi.org/10.1037/a0022575