Encyclopedia of Clinical Neuropsychology

2011 Edition
| Editors: Jeffrey S. Kreutzer, John DeLuca, Bruce Caplan

Clock Drawing

  • David J. Libon
  • Edith Kaplan
  • Rod Swenson
  • Dana L. Penney
Reference work entry
DOI: https://doi.org/10.1007/978-0-387-79948-3_1351
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Description

Clock Drawing Test (CDT) is a widely used and popular neuropsychological test. Rubin, Barr, and Burton (2005) reported that the CDT appears in the top 40 tests most commonly used by neuropsychologists. The CDT is often considered to be a visuoconstructional test. Modern versions of the CDT usually contain at least two parts – clock drawing to command and clock drawing to copy. In the command condition, patients are presented with a blank sheet of paper and are asked to “draw the face of a clock showing the numbers and the two hands set for ten after eleven.” In the copy condition, a pre-drawn model of a clock with numbers and hands set for 10 after 11 is presented, and the patient is asked to copy the model. Clock drawing with hands set for ten after eleven is an innovation introduced by Edith Kaplan (Kaplan, 1988, 1990).

As described below, other versions of the CDT ask the patient to set the hands for other times. Also, some versions of the CDT include a clock subtest in...

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References and Readings

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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • David J. Libon
    • 1
  • Edith Kaplan
    • 2
  • Rod Swenson
    • 3
  • Dana L. Penney
    • 4
  1. 1.Department of NeurologyDrexel University, College of MedicinePhiladelphiaUSA
  2. 2.Department of PsychologySuffolk UniversityBostonUSA
  3. 3.University of North Dakota Medical SchoolFargoUSA
  4. 4.Department of NeurologyThe Lahey ClinicBurlingtonUSA