Do schooling gains yield anomalous Jensen effects? A reply to Flynn (2019) including a meta-analysis.

Jan Te NijenhuisEsteban van der BoorYu Yong ChoiKunho Lee

Published in: Journal of biosocial science (2019)

A test of Jensen effects is of nil value as a diagnostic instrument when various good-sized meta-analyses show Jensen effects appear for both genetic effects and environmental effects. Using thought experiments, Flynn (2019) claims that some schooling gains yield Jensen effects, which should not be the case for an environmental effect. However, a meta-analysis (K = 12, total N = 60,993, mean r = 0.13) of schooling gains shows no Jensen effect. Real data trump thought experiments, so it is concluded there is no empirical proof of anomalous Jensen effects for schooling gains.

Keyphrases

gene expression
risk assessment
health insurance
deep learning
meta analyses
data analysis