Random-Effects Model (k = 32; tau^2 estimator: REML)

tau^2 (estimated amount of total heterogeneity): 144.4980 (SE = 62.3275)
tau (square root of estimated tau^2 value):      12.0207
I^2 (total heterogeneity / total variability):   66.11%
H^2 (total variability / sampling variability):  2.95

Test for Heterogeneity: 
Q(df = 31) = 124.7342, p-val < .0001

Model Results:

estimate       se     zval     pval    ci.lb    ci.ub          
-59.4881   2.8516 -20.8614   <.0001 -65.0771 -53.8991      *** 

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Signif. codes:  0 *** 0.001 ** 0.01 * 0.05 . 0.1   1 