What question did this study set out to answer?

The study aims to explore the relationship between family configuration and variations in intelligence scores, particularly focusing on the SAT.

April 16, 1976Science

Family Configuration and Intelligence

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Randomized trial examines family configuration effects on intelligence in children, revealing implications for academic performance.

The study aims to explore the relationship between family configuration and variations in intelligence scores, particularly focusing on the SAT.
Theoretical analysis of family configuration patterns and their impacts on intelligence.
Empirical examination of factors such as family size, birth order, and inter-sibling spacing.
Analysis of historical trends in family patterns and their correlation with aggregate intelligence measures.
Intellectual performance increases with smaller family size, with children born early in the sibship showing lower performance.
Long inter-sibling spacing mitigates negative effects of birth order, enhancing intellectual growth.
Temporal changes in family patterns, such as birth rates and size, correlate with changes in aggregate SAT scores.

Robert B. Zajonc (1976) studied this question.

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