Standardized Assessments of Verbal Intelligence in 3-Year-Old Children: A Comparison of Biomedical and Psychoeducational Data in a Longitudinal Sample

Abstract

The present study examined three measures of verbal intelligence obtained from the Stanford-Binet Intelligence Scale-4th Edition, the McCarthy Scales of Children's Abilities, and the Peabody Picture Vocabulary Test and measures of biomedical and social characteristics of 129 3-year-old children. Particular attention was paid to how the verbal scores were influenced by the biomedical and social characteristics of the subjects. Results showed that the verbal scores obtained from the three tests were similar in some respects, but also reflected some unique scale characteristics. Further, the social characteristics of the subjects influenced the scores more than biological measures.