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. 2021 Mar 27;47(4):997–1006. doi: 10.1093/schbul/sbab022

Table 2.

Effect Size and Heterogeneity Calculations for Cognitive, Symptomatic, and Functional Outcomes

Effect Size Heterogeneity
Outcome Studies Hedge’s g 95% CI z-Value P-Value Q-Value DoF P-Value I 2 N fs
Global cognition 26 0.29 0.12–0.45 3.43 .001 63.37 25 .000 60.55 49
Attention 35 0.28 0.15–0.42 4.02 .000 82.72 34 .000 58.90 63
Processing speed 52 0.20 0.12–0.29 4.54 .000 71.72 51 .029 28.89 52
Reasoning 50 0.27 0.17–0.38 5.06 .000 96.31 49 .000 49.12 85
Social cognition 17 0.12 0.00–0.24 2.015 .044 16.19 16 .440 1.18 3
Verbal learning 61 0.33 0.24–0.42 6.877 .000 108.01 60 .000 44.45 140
Visual learning 33 0.19 0.06–0.33 2.788 .005 72.67 32 .000 55.97 30
Working memory 62 0.32 0.24–0.40 7.924 .000 80.39 61 .049 24.12 136
Depression 10 0.14 −0.345–0.62 0.552 .581 59.31 9 .000 84.83 N/A
Negative symptoms 31 0.16 0.04–0.29 2.514 .012 52.52 30 .007 42.88 19
Positive symptoms 30 0.04 −0.05–0.13 0.952 .341 17.87 29 .947 0.000 N/A
Total symptoms 22 0.08 −0.06–0.23 1.123 .261 37.05 21 .017 43.33 N/A
Functional capacity 16 0.12 −0.01–0.25 1.804 .071 17.42 15 .294 13.91 N/A
Functional outcome 34 0.21 0.08–0.34 3.21 .001 69.90 33 .000 52.77 37
Recovery 16 0.15 −0.09–0.40 1.23 .220 61.96 15 .000 75.79 N/A