Genetic Psychology Monographs, Volumes 43 à 44

ability achievement activity addition analysis anonymous behavior boys cancellation child chronological age classification comparative components consistent controls copying correlation course determined difference scores disturbance drawing Educational effect errors experience experimental expression fact factors Figure findings form perception four function girls given grade greater higher hostility included indicated individual infant intelligence interest Journal learning less lines listeners lower mean measures mental age method motor non-listeners normal objective observed parents pattern performance peripheral personality physics possible present prestige group prestige motivation problem programs Psychology quantitative radio ratings reactions reading record reference relation relationship relatively reliability represented respect responses rotation sample sets shown significant situation social sounds specific speed subjects suggested suicide TABLE teacher things tion University upper variability various vertical VOLUME young