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Table 5 Means and statistical characteristics for total score, ASD vs. comparison groups

From: The Ritvo Autism Asperger Diagnostic Scale-Revised (RAADS-R): A Scale to Assist the Diagnosis of Autism Spectrum Disorder in Adults: An International Validation Study

Group Mean SEp SD Range S–W Skewness Kurtosis Effect size
Autistic spectrum (n = 201) 133.83 2.66 37.74 44–227 0.993 0.09 −0.18 4.56
Comparison controls (n = 578) 25.95 0.67 16.04 0–65 0.959 0.42 −0.76  
  1. SW Shapiro-Wilkes normality statistic
  2. F = 1,522.44, df = 1, p < .0001