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A longitudinal study of the Wechsler Intelligence Scale for Children‐revised over a six‐year period
Author(s) -
Vance Booney,
Hankins Norman,
Brown Wesley
Publication year - 1987
Publication title -
psychology in the schools
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.738
H-Index - 75
eISSN - 1520-6807
pISSN - 0033-3085
DOI - 10.1002/1520-6807(198707)24:3<229::aid-pits2310240306>3.0.co;2-e
Subject(s) - psychology , wechsler adult intelligence scale , wechsler intelligence scale for children , developmental psychology , longitudinal study , intelligence quotient , test (biology) , learning disability , clinical psychology , statistics , cognition , psychiatry , mathematics , paleontology , biology
The study investigated the stability of the WISC‐R IQ scores of 32 exceptional students (24 males, 8 females) over a six‐year interval. The sample was composed of 20 learning disabled and 12 mentally handicapped students who ranged in age from 6–5 to 16–11. Analyses of variance for repeated measures and product‐moment correlations were used to analyze the data. Test‐retest findings indicated that the r s ranged from .53 to .87, with a median value of .74, with four of the nine values below .70. Implications for clinicians in terms of the importance of reevaluation of exceptional students are discussed.