General Factor and Uniqueness Characteristics of the Kaufman Adolescent and Adult Intelligence Test (KAIT)

Abstract

When new or revised intelligence batteries are published, it is important to know the general factor loading and uniqueness information of the individual subtests prior to using them for clinical interpretation. Recently, Kaufman and Kaufman (1993) presented this information for 8 of the 10 subtests at 6 broad age groups for the new Kaufman Adolescent and Adult Intelligence Test (KAIT). This study investigated the general factor and uniqueness characteristics of all 10 individual KAIT subtests for all 13 KAIT technical age groups. Findings showed that all but one (Auditory Delayed Recall) of the 10 KAIT subtests consistently had “good” average general factor loading characteristics. Similarly, the KAIT subtests had either “adequate” or “ample” average uniqueness classifications for all ages. Only one (Auditory Delayed Recall) of the 10 KAIT subtests had “inadequate” uniqueness at all ages. Comparisons to the test authors' reported values revealed a number of differences, particularly for the KAIT subtest uniqueness classifications. Implications for clinical interpretation are discussed.