A short-portable version of the Category Test.

This study validates the use of a shortened version of the booklet form of the Category Test developed by DeFillipis, McCampbell and Rogers (1979). In a sample of 85 subjects the estimated total score (using the Calsyn, O'Leary and Chaney (1980) regression equation) correlated 0.93 with the actual total error score. It was also found that the estimated score could reliably predict who would exceed the cutoff of 51 errors on the entire test with an overall accuracy of 86%. The results support the use of a brief booklet version of the Category Test.