Encyclopedia of Clinical Neuropsychology

2018 Edition
| Editors: Jeffrey S. Kreutzer, John DeLuca, Bruce Caplan

Category Test

  • Nick A. DeFilippisEmail author
Reference work entry
DOI: https://doi.org/10.1007/978-3-319-57111-9_1882




The category test (CT) was first published by Ward Halstead (Halstead and Settlage 1943). Over the years, there have been several versions of the test, all retaining the essential format of the original and the goal of measuring concept formation ability. All versions involve the presentation of visual images of different shapes to the examinee. The examinee is to determine which underlying concept is presented by the image and choose a number from 1 to 4 to identify the concept. For example, the examinee may choose the number corresponding to the number of items in the image, the proportion of the image that is drawn continuously, etc. The examinee is given feedback after each choice to indicate if he or she was correct in their decision. By a process of utilizing this feedback to monitor performance, the examinee then learns the concepts. The number of errors is used to determine the overall performance.

The original version of the test was...

This is a preview of subscription content, log in to check access.

References and Readings

  1. Choca, J. P., Laastch, L., Wetzel, L., & Agresti, A. (1993). The Halstead category test: A fifty year perspective. Paper presented at the Annual Meeting of the American Psychological Association, Toronto.Google Scholar
  2. Costa, J., Santos, I., Silva, C., & DeFilippis, N. (2014). Portuguese norms of the Halstead category test: Preliminary data. Presented at the 2014 National Academy of Neuropsychology Conference, Puerto Rico.Google Scholar
  3. DeFilippis, N. A., & McCampbell, E. (2002). Booklet category test. Paris: ECPA. French version of test with new norms and scales.Google Scholar
  4. DeFilippis, N., & Reece, T. (2015). A statistical comparison of French vs US norms for the Booklet category test. Presented at the National Academy of Neuropsychology Annual Convention, Austin, Nov 2015Google Scholar
  5. Halstead, W. C. (1940). Preliminary analysis of grouping behavior in patients with cerebral injury by the method of equivalent and non-equivalent stimuli. American Journal of Psychiatry, 96, 1263–1294.CrossRefGoogle Scholar
  6. Halstead, W. C., & Settlage, P. H. (1943). Grouping behavior of normal persons and of persons with lesions of the brain. Archives of Neurology and Psychiatry, 49, 489–503.CrossRefGoogle Scholar
  7. Heaton, R. K., Grant, I., & Matthews, C. G. (1991). Comprehensive norms for an expanded Halstead-Reitan battery: Demographic corrections, research findings, and clinical applications. Odessa: Psychological Assessment Resources.Google Scholar
  8. LaDuke, C., Barr, W., Brodale, D., & Robin, L 2016. Common test utilization in forensic neuropsychological assessment: A survey of National Academy of Neuropsychology (NAN) and International Neuropsychological Society (INS) members. Presented at the 2016 National Academy of Neuropsychology Annual Meeting, Seattle.Google Scholar
  9. Kupke, T. (1983). Effects of subject sex, examiner sex, and test apparatus on Halstead category and tactual performance tests. Journal of Consulting and Clinical Psychology, 51, 624–626.PubMedCrossRefGoogle Scholar
  10. McNally, S., Dsurney, J., McGovern, J., DeFilippis, N., & Chan, L. (2015). Concurrent validity of new subscale scores for the Booklet category test Assessment, 1–9.  https://doi.org/10.1177/073191115588783.
  11. Minassian, A., Perry, W., Carlson, M., Pelham, M., & DeFilippis, N. (2003). The category test perseveration, loss of set, and memory scales: Three new scales and their relationship to executive functioning measures. Assessment, 10, 213–221.PubMedCrossRefGoogle Scholar
  12. Mungia, M., & DeFilippis, N. (2013). The effects of demographics on a Spanish version of the Booklet category test. Presented at the 2013 Meeting of the American Psychological Association. Honolulu, Hawaii.Google Scholar
  13. Santos, I. M., Teixeira, A. R., Tomé, A. M., Pereira, A. T., Rodrigues, P., Vagos, P., Costa, J., Carrito, M. L., Oliveira, B., DeFilippis, N. A., & Silva, C. F. (2016). ERP correlates of error processing during performance on the Halstead category test. International Journal of Psychophysiology, 106, 97–105.PubMedCrossRefPubMedCentralGoogle Scholar

Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Georgia School of Professional PsychologyAtlanta Psychological AssociatesAtlantaUSA