highly significantp = 1.1 × 10 − 10
Results Case-control comparisons showed highly significant mean group differences for accuracy ( p = 1.1 × 10 − 10 ), with an effect size (Cohen’s d = 1.6), more than twice as large as the mean effect size reported in a previous meta-analysis (Uljarevic and Hamilton, 2012, J Autism Dev Disord ).