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The Intellectual Achievement of Only Children

Published online by Cambridge University Press:  31 July 2008

Denise F. Polit
Affiliation:
Humanalysis, Saratoga Springs, New York
Toni Falbo
Affiliation:
University of Texas, Austin, USA

Summary

A quantitative review of the literature on the intellectual achievement of only children indicated that only children were never at a disadvantage in relation to any comparison group; nor were they significantly different from first-born children or children from two-child families. Moreover, only children were at a significant advantage in comparison with later-born children and those from large families. The consistency of these findings across subgroups suggests that interpersonal mechanisms are largely responsible. The strong only-child advantage on tests of verbal ability, together with the overall pattern of findings, implicates parent–child interactions as responsible for the family size and birth order variations in intellectual achievement.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1988

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References

Blake, J. (1981) Family size and the quality of children. Demography, 18, 421.Google Scholar
Breland, H. M. (1974) Birth order, family configuration, and verbal achievement. Child Dev. 45, 1011.CrossRefGoogle ScholarPubMed
Claudy, J. G. (1984) The only child as young adult: results from project talent. In: The Single-Child Family. Edited by Falbo, T.. Guilford Press, New York.Google Scholar
Cohen, J. (1977) Statistical Power Analysis for the Behavioral Sciences. Academic Press, New York.Google Scholar
Dunn, J. & Kendrick, C. (1980) The arrival of a sibling: changes in patterns of interaction between mother and first-born child. J. Child Psychol. Psychiat. allied Discipl. 21, 119.CrossRefGoogle ScholarPubMed
Falbo, T. (1978) Sibling tutoring and other explanations for intelligence discontinuities of only and last borns. J. Popul. 1, 345.Google Scholar
Falbo, T. & Cooper, C. R. (1980) Young children's time and intellectual ability. J. genet. Psychol. 137, 299.CrossRefGoogle Scholar
Falbo, T. & Polit, D. F. (1986) A quantitative review of the only-child literatures: research evidence and theory development. Psychol. Bull. 100, 176.CrossRefGoogle Scholar
Gewirtz, J. L. & Gewirtz, H. B. (1965) Stimulus conditions, infant behaviors, and social learning in four Israeli child-rearing environments: a preliminary report illustrating differences in environment and behavior between ‘only’ and ‘youngest’ child. In: Determinants of Infant Behavior. Vol. 3. Edited by Foss, B. M.. Wiley, New York.Google Scholar
Glass, G. V., McGaw, B. & Smith, M. L. (1981) Meta-Analysis in Social Research. Sage, Beverly Hills.Google Scholar
Lewis, M. & Feiring, C. (1982) Some American families at dinner. In: Families as Learning Environments for Children. Edited by Laosa, L. M. & Sigel, I. E.. Plenum, New York.Google Scholar
Lindert, P. H. (1978) Fertility and Scarcity in America. Princeton University Press, Princeton.Google Scholar
Page, E. B. & Grandon, G. M. (1979) Family configuration and mental ability: two theories contrasted with U.S. data. Am. educ. res. J. 16, 257.CrossRefGoogle Scholar
Rosenthal, R. & Rubin, D. B. (1982a) Comparing effect sizes of independent studies. Psychol. Bull. 89, 500.CrossRefGoogle Scholar
Rosenthal, R. & Rubin, D. B. (1982b) Further meta-analytic procedures for assessing cognitive gender differences. J. educ. Psychol. 74, 708.CrossRefGoogle Scholar
Shinn, M. (1978) Father absence and children's cognitive development. Psychol. Bull. 85, 295.CrossRefGoogle ScholarPubMed
Zajonc, R. B. & Markus, G. B. (1975) Birth order and intellectual development. Psychol. Rev. 82, 74.CrossRefGoogle Scholar