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Peer reviewedSundell, Knut – Early Childhood Research Quarterly, 2000
Investigated effects of program auspice (nonprofit versus profit child care), adult-to-child ratios, and class age span on teaching and on preschoolers' social and cognitive development. Found that age, gender, social background, and age span were significant predictors of children's social and cognitive development; adult-to-child ratio and…
Descriptors: Age Differences, Age Groups, Caregiver Child Relationship, Cognitive Development
Westin-Lindgren, Gunilla – 1979
From 1964-71, 323 pairs of twins and 740 age-matched controls born in 1954-55, were investigated. Compared to schoolchildren in 1880 and 1940 the children in the present study were taller, reached maturity earlier and passed through puberty faster. No differences between socioeconomic strata defined by father's occupation and family income were…
Descriptors: Academic Achievement, Body Height, Body Weight, Cognitive Ability
Jansson, Karin, Ed. – School Research Newsletter, 1982
Data were collected between 1965 and 1971 concerning the physical status and school achievement of a nationally representative sample of Swedish pupils comprised of 360 girls and 380 boys. Pupils were followed from grade 3 through grade 9 of compulsory school. For boys, similar data were collected in connection with military enrollment. Main…
Descriptors: Academic Achievement, Cognitive Development, Comparative Analysis, Cross Cultural Studies
