Statistics for negatively skewed distribution: IQR or SD ? T-Test or Mann-Whitney U test ?

I am doing statistics to get normative data. The distribution is non normal. N = 192 Mdn = 61, M = 60,29 Range 49-62 1. Outlier : At first, I used -2.5 SD to identify outliers. But Reviewer...

14 May 2019 8,886 4 View