COMPARISON OF WAIS-R SELECTED SUBTEST SHORT FORMS IN A MIXED CLINICALPOPULATION

Abbreviated forms of the revised edition of the Wechsler Adult Intelli gence Scale (WAIS-R) attempt to shorten the administration time of the test without adversely affecting the results. Seven different short f orms of the WAIS-R were compared in a mixed clinical sample to evaluat e short form predictions of Full Scale IQ (FSIQ). Correlation coeffici ents for each short form indicate that Ward's seven-subtest short form predicts IQ scores most closely to FSIQ scores across ranges of intel lectual functioning. In this sample, 96% of the patients obtained FSIQ scores within 5 points of their actual FSIQ when using this short for m. Two tetrad short forms yielded scores that were close to actual FSI Q scores, however to a lesser degree. These results are consistent wit h other studies using Ward's seven-subtest short form, and, therefore, suggest that this particular version is a reliable and valid substitu te for a full WAIS-R when time is limited.