Orlich & Gifford (2006) published an analysis that shows high correlation between parental income and SAT scores. All those correlations are close to 100%, in fact, around 0.97 or 0.98. This is more than twice the usual effect size we see in the literature, even corrected for measurement errors and some other artifacts. Just unbelievable.
Against bad use of correlations
Against bad use of correlations
Against bad use of correlations
Orlich & Gifford (2006) published an analysis that shows high correlation between parental income and SAT scores. All those correlations are close to 100%, in fact, around 0.97 or 0.98. This is more than twice the usual effect size we see in the literature, even corrected for measurement errors and some other artifacts. Just unbelievable.