Both groups of boys underwent one neuropsychological evaluation at the age of about 12 years and subsequently reevaluated at the age of about 17 .
Womabili la maqembu abafana abhekana neyodwa ukuhlolwa kwe-neuropsychological eneminyaka engaba ngu-12 futhi ngokulandelayo iphinde yahlaziywa eminyakeni eyi-17.