Effect Sizes, Power, and Biases in Intelligence Research: A Meta-Meta-Analysis

In this meta-study, we analyzed 2442 effect sizes from 131 meta-analyses in intelligence research, published from 1984 to 2014, to estimate the average effect size, median power, and evidence for bias. We found that the average effect size in intelligence research was a Pearson’s correlation of 0.26...

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Bibliographic Details
Main Authors: Michèle B. Nuijten, Marcel A. L. M. van Assen, Hilde E. M. Augusteijn, Elise A. V. Crompvoets, Jelte M. Wicherts
Format: Article
Language:English
Published: MDPI AG 2020-10-01
Series:Journal of Intelligence
Subjects:
Online Access:https://www.mdpi.com/2079-3200/8/4/36