The DTLA-4 is the oldest and most venerable of the tests of specific cognitive abilities. The test includes 12 subtests. The results of the subtests can be combined to form 9 composites that measure both general intelligence and discrete ability areas. Examiners can administer the subtests from one or both of the DTLA-5 domains. The DTLA-5 was normed on 1,383 students residing in 30 states and 354 zip codes. This test not only measures basic abilities, but also shows the effects of language, attention, and motor abilities on test performance.
The following subtests are contained in the DTLA-4:
The DTLA-5 Online Scoring and Report System (provided as part of the DTLA-5 Complete Kit) was designed as a quick, efficient tool for entering test-session data; converting subtest item scores or subtest total raw scores into scaled scores; converting sums of scaled scores into composite index scores, percentile ranks, and upper and lower confidence intervals; comparing DTLA-5 scores to identify significant intraindividual differences; and obtaining a score summary and narrative report.
The complete DTLA-4 Kit includes the following components, all in a sturdy storage box: