1999k-387 childdevelopment childpsychology cognitivestyles cognitivestylesinchildren death determination(personalitytrait)inchildren déterminationchezl'enfant earlychildhoodeducation employeemotivation intellectualdisability mentallydisabledpersons motivation motivation(psychology) newyorktimesbestseller nyt:combined-print-and-e-book-nonfiction=2012-09-23 peoplewithmentaldisabilities personalityandacademicachievement personalityandcognition personalityandemotions personalitydevelopment personnalitéetcognition personnalitéetmotivation personnalitéetsuccèsscolaire psychictrauma psychologicalaspects psychology religiousaspects socialaspects stressinchildren successinchildren succèschezl'enfant suicide suicidebombers terrorism wm300p4671999