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ERIC Number: ED313107
Record Type: Non-Journal
Publication Date: 1989-Apr-18
Pages: 11
Abstractor: N/A
Reference Count: N/A
ISBN: N/A
ISSN: N/A
The Only Child: Sibling Presence-Absence or Single Parent Effects?
Rosenberg, B. G.; Falk, F.
First-borns who were only children (onlies) and first-borns who had a sibling were compared on measures of intelligence from late adolescence at 18 years of age to late middle age at 60. The sample was composed of 38 female and 33 male first-born subjects from one- and two-child families. Wechsler Bellevue Intelligence Scale scores at late adolescence, middle age, and late middle age were available for all subjects. Findings indicate that effects were greater for females than for males. First-born females with a sibling score significantly higher on the Wechsler Bellevue scales than females without a sibling. Major differences appeared on the Verbal Subscales, the Verbal IQ, and the Full Scale IQ. For males, differences appear primarily on performance subscales. For females, the association of sibling presence with higher scores on the Wechsler Bellevue is strongest at late adolescence and late middle adulthood, though this difference is consistent over the life span. For males, the modest differences do not favor one time period in the life span. Results appear to confirm the disadvantaged status of the only child as contrasted with the first-born subject with a sibling on measures of intelligence. This disadvantage persists throughout the life span. Single parenting, significantly higher in onlies, appears not to be crucial. (RH)
Publication Type: Reports - Research; Speeches/Meeting Papers
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A