He stayed at Pittsburgh Learning Research and Development Center for postdoctoral studies during 1975 .
Bar - Tal has pursued his graduate training in social psychology at the University of Pittsburgh , where he completed his doctoral dissertation in 1974 .
Bar - Tal stayed at Pittsburgh Learning Research and Development Center for postdoctoral studies during 1975 .
Bar - Tal has pursued his graduate training in social psychology at the University of Pittsburgh , where he completed his doctoral dissertation in 1974 .