Publication bias in randomized trials of psilocybin for depression: a Robust Bayesian Meta-Analysis
Çağrı Özkurt preprint
A recent living systematic review in Nature Mental Health found psilocybin reduced depression symptoms across 12 randomized controlled trials, with pooled effect g = 0.90. The original analysis assessed publication bias using Egger’s test, non-significant — but this test has limited power with few studies and cannot produce a bias-corrected estimate. We re-analysed the same open dataset using...