"ERIC Clearinghouse on Elementary and Early Childhood Education." . . "Intelligence levels." . . . . . . . . . "The academic and social consequences of grade retention a convergent analysis"@en . . . . . . . . . . . . . . . . "The academic and social consequences of grade retention : a convergent analysis"@en . . . . "Learning, Psychology of." . . "National Institute of Education (U.S.)" . . "Personality and academic achievement." . .