Neurocognitive Means (SEM) at Pretreatment, Post-Treatment and Follow-up, Adjusted for Intellectual Level and Age.

All p-values are for mean comparisons versus ISO after adjustment for group differences in age and WTAR score. Post-treatment and Follow-up p-values are also adjusted for group differences in Pretreatment and thus test group differences in performance decline or improvement from Pretreatment levels.Cohen's d effect sizes for significant comparisons were consistently large and ranged from 1.1 to 1.7.