Inducing positive affect and positive future expectations using the best-possible-self intervention: A systematic review and meta-analysis

The best-possible-self intervention has been shown to effectively increase positive affect and optimism. Differences in timing and conceptualization of outcome assessments, however, complicate interpretations regarding the practical significance of these effects. To address this issue, we conducted a systematic literature search and included 34 randomized controlled trials into several meta-analyses. We coded the exact time of measurement and...