| 95% confidence interval | |||
|---|---|---|---|
| Study | Effect size (d) | Lower limit | Upper limit |
| Straussman et al., 2012 | 0.66609 | −0.07551 | 1.39781 |
| Lezcano et al., 2014 | 0.27606 | −0.80859 | 1.35422 |
| Combined studies | 0.54264 | −0.06561 | 1.15090 |
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