Test-Relief Reliability of the Universal Nonverbal Intelligence Test with Children Diagnosed with Attention Deficit Hyperactivity Disorder

The Universal Nonverbal Intelligence Test (Bracken & McCallum, 1998 [UNIT]) is a relatively new intelligence test that is administered in an entirely nonverbal way. Research supports the use of this test with special populations such as those with learning disabilities, those who are intellectually gifted, as well as with those who have speech/language impairments (Bracken & McCallum, 1998). One population not accounted for in the test\u27s standardization sample are children diagnosed with Attention Deficit Hyperactivity Disorder (ADHD). This study investigates the test-retest reliability of the UNIT with children diagnosed with ADHD. Another main focus of this study involves determining the appropriateness of utilizing a test interpretation method, known as ipsative analysis, with the UNIT and children with ADHD. The results of this study support the notion that the UNIT is a reliable test to use with children diagnosed with ADHD. Obtained test-retest correlation coefficients are very similar to those found in standardization sample studies. The results of this study do not support the use of ipsative analysis of the UNIT involving children with ADHD