Effect of Socioeconomic Status of biological and Adoptive Parents on WISC-R Subtest Scores of their French Adopted Children

摘要

Analyses from an a priori full cross-fostering study (Capron & Duyme, 1989, 1991), investigating the IQs of 38 children whose average age was 168 (SE-3.28) months, indicated a link between the socioeconomic status (SES) of both biological and adoptive parents and Full, Verbal, and Performance IQs of the WISC-R scale. Here detailed an-alyses of the WISC-R scale are presented. These show that these two factors affect Block Design and Information subtests, and other subtests are affected either by one or the other factor. Two subtests—Picture Arrangement and Picture Completion—are not affected by either factor. There is no evidence for an interaction between these factors on adopted children's subtest scores. As the sample size is small for a test of nonadditivity, the analy-sis is extended to the power of interaction test.