D2 Test of Attention

The d2 Test of Attention is a neuropsychological measure of selective and sustained attention and visual scanning speed.[1] It is a paper and pencil test that asks participants to cross out any letter "d" with two marks around above it or below it in any order.[2] The surrounding distractors are usually similar to the target stimulus, for example a "p" with two marks or a "d" with one or three marks.[3] The original version of the test was created by Brickenkamp (1981) in Germany as a cancellation task.[4]

D2 Test of Attention
Purposemeasure of selective and sustained attention

References
  1. Rhonda M. Ross (2005). The D2 Test of Attention: An Examination of Age, Gender, and Cross-cultural Indices. Argosy University.
  2. Margaret Semrud-Clikeman; Phyllis Anne Teeter Ellison (15 June 2009). Child Neuropsychology: Assessment and Interventions for Neurodevelopmental Disorders, 2nd Edition. Springer. p. 111. ISBN 978-0-387-88963-4.
  3. Michel Leclercq; Peter Zimmermann (4 April 2002). Applied Neuropsychology of Attention: Theory, Diagnosis and Rehabilitation. Psychology Press. p. 193. ISBN 978-1-135-43178-5.
  4. Otfried Spreen (19 February 1998). A Compendium of Neuropsychological Tests: Administration, Norms, and Commentary. Oxford University Press. p. 240. ISBN 978-0-19-510019-8.

Further reading
  • Flanagan, Dawn P.; Harrison, Patti L., eds. (2012). Contemporary Intellectual Assessment: Theories, tests, and issues (Third ed.). New York (NY): Guilford Press. ISBN 978-1-60918-995-2. Lay summary (29 March 2014).CS1 maint: ref=harv (link)
  • Miller, Daniel C. (3 January 2013). Essentials of School Neuropsychological Assessment (2nd ed.). John Wiley & Sons. ISBN 978-1-118-17584-2. Retrieved 9 June 2014.CS1 maint: ref=harv (link)
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