From: Positive psychology interventions: a meta-analysis of randomized controlled studies
Outcome measures | n | N | Studies | Cohen’s d(95% CI) | Heterogeneity | Test for overall effect |
---|---|---|---|---|---|---|
Post-test | Â | Â | Â | Â | Â | Â |
Subjective well-being | 28 | Ne=1449 Nc=1265 | [29, 32–34, 51, 56–59, 61, 62, 64, 66–71, 73, 75, 77, 79–81, 84, 85] | 0.34 (0.22 – 0.45) | Q=53.5, df=27, T2=0.04 (p<.01); I2=49.5% | Z=5.82 (p<.01) |
Psychological well-being | 20 | Ne=2511 Nc=977 | 0.20 (0.09 – 0.30) | Q=26.8, df=19, T2=0.01 (p=0.11); I2=29.0% | Z=3.65 (p<.01) | |
Depression | 14 | Ne=2435 Nc=760 | 0.23 (0.09 – 0.38) | Q=24.5, df=13, T2=0.03 (p=0.03); I2=47.0% | Z=3.21 (p<.01) | |
Follow-up | Â | Â | Â | Â | Â | Â |
Subjective well-being | 6 | Ne=329 Nc=298 | 0.22 (0.05 – 0.38) | Q=5.05, df=5, T2=0.00 (p=0.41); I2=1.1% | Z=2.61 (p<.01) | |
Psychological well-being | 6 | Ne=1830 Nc=417 | 0.16 (0.02 – 0.30) | Q=6.8, df=5, T2=0.01 (p=0.24); I2=26.0% | Z=2.20 (p=.03) | |
Depression | 5 | Ne=1765 Nc=343 | 0.17 (−0.06 – 0.39) | Q=11.1, df=4, T2=0.04 (p=0.03); I2=63.9% | Z=1.44 (p=.15) |