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Grotevant, Harold D.; And Others – Child Development, 1977
Presents a study of a theoretical confluence model which predicts the effects of birth order, child spacing and family size on intellectual development. The fit of this model was tested on samples of families with biological and adopted children. (JMB)
Descriptors: Adopted Children, Comparative Analysis, Family Structure, Intellectual Development

Berbaum, Michael L.; Moreland, Richard L. – Child Development, 1985
Estimates confluence model of intellectual development for a within-family sample of 321 children from 101 transracial adoptive families. Mental ages of children and their parents and birth or adoption intervals were used in a nonlinear least-squares estimation procedure to obtain children's predicted mental ages. Results suggest efficiency of the…
Descriptors: Achievement, Children, Cognitive Development, Family Influence

McCall, Robert B. – Child Development, 1985
Explains that from a prediction standpoint the confluence model is not very efficient. Very modest increments in accuracy are associated with family configuration variables once chronological age is covaried. Suggests that the major postulates of the theory be tested directly, within individuals and with longitudinal data. (Author/AS)
Descriptors: Family Characteristics, Family Influence, Intellectual Development, Longitudinal Studies

Webb, Roger A.; And Others – Child Development, 1974
Descriptors: Age Differences, Cognitive Development, Comprehension, Developmental Psychology

Svanum, Soren; And Others – Child Development, 1982
The effects of father absence on educational achievement and intellectual development of 6- to 11-year-old children were investigated by employing a nationally representative sample of 5,493 father-present and 616 father-absent children from the Health Examination Survey of the National Center for Health Statistics. (Author/RH)
Descriptors: Academic Achievement, Children, Comparative Analysis, Fatherless Family