EFFICIENCY OF PEABODY PICTURE VOCABULARY IN ESTIMATING WISC (WECHSLER INTELLIGENCE SCALE FOR CHILDREN) SCORES FOR DELINQUENTS

• NCJ Number: 57885
• Journal: Psychological Reports Volume: 38 Issue: 2 Dated: (1976) Pages: 359-362
• Author(s): J E CONDIT; D G LEWANDOWSKI; D P SACCUZZO
• Date Published: 1976
• Length: 4 pages
• Grant Number(s): 222-A
• Sponsoring Agency: Tennessee Law Enforcement Planning Agency
• Corporate Author: Psychological Reports
• Publication Format: Article
• Language: English
• Country: United States of America

Annotation

THE INTELLIGENCE QUOTIENTS (IQ'S) OF 106 MALES AGED 13 TO 16 AND OF LOW CLASS STATUS WERE RELATED TO SCORES FROM THE WECHSLER INTELLIGENCE SCALE FOR CHILDREN (WISC).

Abstract

BOTH GROUP AND INDIVIDUAL RESULTS WERE CONSISTENT WITH PREVIOUS DATA SHOWING THE PEABODY SCALE GENERALLY OVERESTIMATES THE IQS OF RETARDED SUBJECTS. THE PRESENT RESULTS, HOWEVER, ALSO INDICATE THAT THE PEABODY TENDED TO UNDERESTIMATE THE IQS OF 34 'DULL NORMAL' SUBJECTS. THUS, THERE APPEARS TO BE AN INTERACTION BETWEEN THE PEABODY, THE WISC, AND IQ LEVEL. INDIVIDUAL ANALYSIS CORROBORATED THE GROUP ANALYSIS IN THAT 77 PERCENT OF THE 26 BLACK SUBJECTS AND 93 PERCENT OF THE 15 WHITE OVERESTIMATED FULL SCALE WISC IQS. IN THE 'DULL NORMAL' IQ RANGE THE PEABODY UNDERESTIMATED WISC PERFORMANCE FOR 89 PERCENT OF THE 18 BLACK SUBJECTS AND 81 PERCENT OF THE 16 WHITE SUBJECTS. WHEN THE WECHSLER MEAN IQ FOR BOTH BLACKS AND WHITES WAS BETWEEN 60 AND 83 THE PEABODY TENDED TO PRODUCE A MEAN IQ SCORE BETWEEN 70 AND 78. THUS, IRRESPECTIVE OF THE WECHSLER IQ, THE MEAN PEABODY IQ SHOWED LITTLE VARIABILITY. THE UTILITY OF THE PEABODY IN ESTIMATING THE WECHSLER IQ OF JUVENILE OFFENDERS IS OF DOUBTFUL VALUE. FOOTNOTES AND REFERENCES ARE INCLUDED. (AUTHOR ABSTRACT.)