6.5--89 years of age.
The WCST® is used primarily to assess perseveration and abstract reasoning. It provides objective measures of overall success and identifies specific sources of difficulty with the task. When used with more coprehensive ability testing, the WCST® helps to discriminate frontal from nonfrontal brain lesions. It uses stimulus and response cards containing 4 forms (shapes) in different colors and numbers. The subjects sort the cards according to color, form, and number and alter their approach as unannounced shifts in the sorting principle occur.
In use since 1993.