WISC-III SCORE CHANGES FOR EMH STUDENTS

WISC-III IQ score changes, for a group of 70 educable mentally handica pped students, over a 3-year period were found to be significantly low er for VIQ, Information, and Vocabulary tests. Trait stability (based on an average 3-year retest interval) in intelligence measurement, as represented by the WISC-III FSIQ, VIQ, and PIQ, was considerably lower -as expected-than reported for the standardization sample (based on a 23 day retest interval) in the WISC-III manual. Significant individual variation was observed, with the FSIQ showing a 22 point range differ ence and the VIQ and PIQ showing even larger ranges between the first and second testing. Implications regarding profile analysis and progra m planning for EMH students are presented. (C) 1998 John Wiley & Sons, Inc.