REVISITING THE FILE DRAWER PROBLEM IN META-ANALYSIS

The file drawer problem is considered one of the biggest threats to the validity of meta-analytic conclusions. The assumption is that null results are less likely to be published in primary-level studies and, hence, less likely to be included in meta-analytic reviews, thereby resulting in an upwardly biased sample of primary-level effect size estimates and upwardly biased meta-analytically derived effect sizes. We conducted three studies to...