Table 3.
Summary statistics related to the heterogeneity and publication bias.
Validity and reliability analyses | Heterogeneity statistics | Publication bias | ||||
---|---|---|---|---|---|---|
Q | p | I2 | Tau2 | Egger | p | |
Mean differences | 46.67 | < 0.001 | 70.0 | 0.062 | 0.29 | 0.860 |
Reliability analysis (ICC values) | 512.5 | < 0.001 | 96.5 | 0.397 | 4.61 | 0.156 |
Validity analysis (r values) | 959.2 | < 0.001 | 98.3 | 0.864 | 4.16 | 0.436 |
ICC intraclass correlation coefficients. Q Cochran Q statistic for homogeneity test, I2: the proportion of total variation caused by heterogeneity rather than within‐study sampling error (%), Tau2: the variance in true effect sizes observed in different studies, Egger: Egger’s regression test.