Response time as a dependent measure on the Category Test of the Halstead-Reitan Neuropsychological test Battery.

The role of response time on the Category Test of the Halstead-Reitan Neuropsychological Battery (HRNB) was examined. Seventy-two normal adult volunteers were administered the complete HRNB. Average response times for individual slides were computed for correct (CRT), incorrect (IRT), and total (TRT) scores on the Category Test. The utility of these response-time scores was examined in the context of other HRNB variables seen to be factorially related to the Category Test. Results from a stepwise multiple regression analysis indicated that approximately 15% of the variability in Category error scores was explained by a measure of spatial memory (TPT-location), and an additional 15% was accounted for by response time (TRT and IRT). A factor analysis indicated that the three measures of response time loaded on a factor that accounted for 21% of the explained variability in HRNB performance.