Table 2.
Effect model | Number of effects | Effect value | 95% confidence interval | Two-tailed test | ||
---|---|---|---|---|---|---|
Lower limit | Upper limit | Z-value | p-value | |||
Fixed effects | 190 | 0.306 | 0.453 | 0.331 | 24.854 | 0.000 |
Random effects | 190 | 0.441 | 0.371 | 0.551 | 12.334 | 0.000 |