PRACTICE EFFECTS WITH THE NIMH AIDS ABBREVIATED NEUROPSYCHOLOGICAL BATTERY

The degree of practice effects with the Brief NIMH Neuropsychological Battery for HN Infection and AIDS is reported using a 7-10 day test-re test interval. The patient groups were asymptomatic and symptomatic of HN while the control group was made up of ''at risk'' volunteers. Sta tistically significant practice effects were obtained on the Californi a Verbal Learning Test, the Paced Auditory Serial Addition Task and th e Visual Search Test among the infected individuals. The controls subj ects demonstrated statistically significant practice effects on all of the neuropsychological tasks. The implications of these findings in p rospective studies are discussed.