Table 9

Descriptive statistics of standardized overall effect sizes

ApproachStandardized overall ESStandard errorConfidence interval (95%)Q-testNumber of studies
  • (1) Mean pearson “r”

−0.09030.5030[−0.0270, −0.1536] 245
  • (2) Unweighted Zr

−0.09040.7142[−0.0005, −0.1802] 245
  • (3) Unweighted Zr (statistically significant studies)

−0.10270.8224[−0.2237, 0.0183] 180
  • (4) Weighted Zr (FEM – inverse variance weighted)

−0.03260.00005[−0.0326, −0.00007]0.0000245
  • (5) Weighted Zr (FEM – sample size weighted)

−0.01050.0006[−0.0105, −0.00008]0.0000245
  • (6) Weighted Zr (REM)

−0.03260.00005[−0.0326, −0.00007]0.0000245

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