Thus, these results indicate no observed heterogeneity, with the important caveat of the low number of included studies. Accuracy on go trials In the accuracy on go trial analysis, older adults were numerically less accurate on go trials than younger adults, but this difference did not reach statistical significance (Hedges’ g = −.18, SE = .17, 95% CI [−.56, .19], 95% prediction interval [−1.36, 1], Z = −1.06, two-tailed p = .287), probably because of a ceiling effect in most studies.
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0.2870
0.2870