Additional file 1: Table S1. Summary of methods for detecting IPB in published systematic reviews. Table S2. The visual assessment results of two assessors. Table S3. The quantitative assessment condu
Negative binomial regressions (N = 49; with a log link) of the number of misreporting errors per paper on the log of the number of test statistics, square root of the average p-value of genuinely sign
aAUC: Area Under the receiver operating characteristic (ROC) Curve.bSens. and spec. are the sensitivity and specificity at the optimum cut-off.cNo significantly discriminating principal components fou
Objectives: Published negative studies should have the same rigor of methodological quality as studies with positive findings. However, methodological quality of negative versus positive studies is n