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Evaluation of the kennedy‐elder abbreviated IQ formula with emotionally disturbed adolescents
Author(s) -
Phelps Leadelle,
Rosso Martin
Publication year - 1986
Publication title -
journal of clinical psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.124
H-Index - 119
eISSN - 1097-4679
pISSN - 0021-9762
DOI - 10.1002/1097-4679(198611)42:6<979::aid-jclp2270420623>3.0.co;2-#
Subject(s) - wechsler adult intelligence scale , psychology , intelligence quotient , wechsler intelligence scale for children , short forms , clinical psychology , population , pearson product moment correlation coefficient , test (biology) , correlation , standard score , test validity , developmental psychology , psychometrics , psychiatry , statistics , cognition , medicine , paleontology , mathematics , environmental health , geometry , biology
The Wechsler Intelligence Scale for Children‐Revised (WISC‐R) was administered to 120 emotionally disturbed adolescents, using standard assessment procedures and format as outlined by Wechsler (1974). Abbreviated IQ scores then were derived by applying the Kennedy‐Elder (1982) formula, an equation that uses five WISC‐R subtests with varied weightings. Comparisons between the standard IQ scores and the abbreviated IQ scores were evaluated. A Pearson product‐moment correlation coefficient of .948 and a nonsignificant t ‐test between the mean IQs suggested that the two scores were interchangeable. However, frequent IQ classification changes (25%) rendered the K‐E format unacceptable for this population.