Selection Bias in Erik van Zwet’s Concerns about z-curve (opens in new tab)

In a blog post on Andrew Gelman’s blog, Erik van Zwet voiced serious concerns about the performance of z-curve, a meta-analytic method to detect selection bias. The main concern was that z-curve failed to detect selection bias in a scenario where most observed data come from high-powered studies (noncentrality parameter z = 4) but some … Continue reading Selection Bias in Erik van Zwet’s Concerns about z-curve → The post Selection Bias in Erik van Zwet’s Concerns about z-curve first appeared ...