- Kushlev, K.; Heintzelman, S.J.; Lutes, L.
- ENHANCE: Design and Rationale of a Randomized Controlled Trial for Promoting Enduring Happiness & Well-being.
- Contemporary Clinical Trials, 2017, VOL. 52, 62-74
- English (Australia, Canada, UK, USA)
Eligible for inclusion in findings archive
- No, no valid measure of happiness used.