Christophe Leys

Detecting outliers: Do not use standard deviation around the mean, use absolute deviation around the median

Christophe Leys, Christophe Ley, Olivier Klein et al. · Journal of Experimental Social Psychology · 2013 · 3.8K citations · Full text

Standard Deviation, Outlier Detection, Absolute Deviation

Why Psychologists Should by Default Use Welch’s t-test Instead of Student’s t-test

Marie Delacre, Daniël Lakens, Christophe Leys · International review of social psychology · 2017 · 912 citations · Full text

Detecting multivariate outliers: Use a robust variant of the Mahalanobis distance

Christophe Leys, Olivier Klein, Yves Dominicy et al. · Journal of Experimental Social Psychology · 2017 · 463 citations · Full text

Anomaly Detection, Engineering, Data Science +12

How to Classify, Detect, and Manage Univariate and Multivariate Outliers, With Emphasis on Pre-Registration

Christophe Leys, Marie Delacre, Youri L. Mora et al. · International Review of Social Psychology · 2019 · 299 citations · Full text

Anomaly Detection, Engineering, Rare Event Estimation +17

Taking Parametric Assumptions Seriously: Arguments for the Use of Welch’s <i>F</i>-test instead of the Classical <i>F</i>-test in One-Way ANOVA

Marie Delacre, Christophe Leys, Youri L. Mora et al. · International review of social psychology · 2019 · 247 citations · Full text