Adverse childhood experiences (ACEs) refer to negative events of childhood. Research has demonstrated relationships between ACEs and adult mental and physical difficulties. Fewer studies have examined potential moderators of these relationships. This study assessed the role of character strengths in the relationship between ACEs and negative physical and mental health outcomes in adulthood. An online sample of 1,491 adults completed questionnaires measuring character strengths, exposure to ACEs, and aspects of physical/mental health. Results replicated previous findings that ACEs and character strengths are each meaningfully related to health outcomes. Gratitude and self-regulation were generally indicative of better health outcomes, kindness and appreciation of beauty of poorer outcomes. Character strengths remained meaningful correlates of adult behavioral and emotional health even when controlling for ACEs. Character strengths did not moderate the relationship between ACEs and health, suggesting that character strengths do not mitigate the effects of ACEs, but do make an independent contribution to physical and mental health. Supplementary Information The online version contains supplementary material available at 10.1007/s41042-023-00097-3.

Research on strengths-based positive interventions (SBPIs) has often supported their effectiveness, but these studies overwhelmingly focus on experiential outcomes such as affect and subjective well-being. Much less is known about their effectiveness for eliciting positive behavioral outcomes. The current article provides a lexicon to clarify distinctions between various types of positive interventions. This is followed by a meta-analysis of studies examining behavioral outcomes from SBPIs. Multiple databases were searched through October 2020. Out of 418 studies evaluating what could be considered SBPIs, only 48 analyses across 29 articles examined group differences in a behavioral outcome. Random-effects meta-analysis of post-test data revealed a small to medium, statistically significant effect, Hedges’ g= 0.32. Evidence was insufficient to suggest small-study or methodological bias. SBPIs seemed effective for eliciting behavioral change relative to control conditions consistent with prior meta-analyses. However, the available data are too limited to support SBPIs as an alternative to traditional approaches that focus on direct symptom reduction.