Table 4 The results of meta-regressions
Variables | Coefficient | SE | T | P- Value | CI 95% Lower | CI 95% Upper |
|---|---|---|---|---|---|---|
Year of publication | −0.00 | 0.01 | −0.51 | 0.61 | −0.03 | 0.02 |
Sample size | −4.41 | 3.8 | −1.15 | 0.26 | −0.00 | 3.44 |
Constant | 16.48 | 31.46 | 0.52 | 0.60 | −47.86 | 80.82 |