CONCURRENT VALIDITY ON THE WISC-III AND STANFORD-BINET-IV

WISC-III, and Stanford-Binet IV IQs were correlated for 57 volunteers (27 boys and 30 girls of ages 6 to 17 years) who were tested by 17 gra duate students. Order of testing was not counterbalanced. Full Scale I Qs on the WISC-III correlated .81 with the Test Composite Standard Age Scores of the Stanford-Binet IV. The average difference between the t wo tests was less than 2 IQ points. Although the average difference be tween the two tests was not significant, for some children it was larg e. Caution is urged when using these assessment instruments as if they provide similar scores.