A meta-analysis by Li and colleagues investigated the effects of intervention programs on K-12 in-service teacher well-being. A total of 44 studies, comprising 176 effect sizes, published from 1990 to 2022 were included in the three-level meta-analysis. About 80% effect sizes was obtained from interventions with duration 8 weeks or less. Among these studies, 31 used a pre-test/post-test control group design, while 14 studies only compared pre/post intervention results. The overall mean effect size of 0.35.
The moderation analysis explored factors influencing effect variability across studies. The quality of each study was assessed based on five criteria (e.g., sampling method, study design), and were classified into strong, moderate, and weak. Analysis revealed that strong quality studies (g = 0.53, k=21) had the largest effect size, followed by weak (g=0.40, k=45) and moderate quality (g = 0.26, k =110) studies. Moreover, studies with a control group (g=0.39, k=111) had larger effects than those without (g=0.26, k=65), though not statistically significant.
Regarding intervention type, mindfulness-based interventions (g = 0.39, k = 79) had significantly larger effects than those targeting the mitigation of negative emotions (g = 0.15, k=13), but comparable to positive-psychology based interventions (g=0.38, k=29). While no significant differences were found, interventions had greater impact on personal well-being (e.g., life satisfaction, reducing stress) than occupational well-being (e.g., job satisfaction, occupational burnout).
The findings of the study may be inflated due to several limitations: 1) the study only included published peer-reviewed journal articles, excluding grey literature; 2) significant publication bias was found; and 3) all studies used self-report questionnaires for measurement.
Nevertheless, this meta-analysis provides a comprehensive and updated synthesis of the effects of interventions on teacher well-being.
Note: k = number of effect sizes.
Source: Li, Y., Wang, X., Chen, J., Lee, J. C.-K., Yan, Z., & Li, J.-B. (2024). The Intervention Effects on Teacher Well-being: A Three-Level Meta-Analysis. Educational Psychology Review, 36(4), 129. https://doi.org/10.1007/s10648-024-09966-y