D2 Test of Attention

D2 Test of Attention
D2 Test of Attention
Purpose	measure of selective and sustained 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] A meta-analysis, published in Personality and Individual Differences, found that adults have shown increasing scores in selective attention over the past three decades, as measured by the d2 Test of Attention.^[5]

References

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. ERIC ED530599.
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.

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D2 Test of Attention

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