D2-R Test

Rolf Brickenkamp

The revised version of the d2 test which measures attention and concentration. The test taker's task is to cross out, within the limited period of time, certain symbols from among those presented to him/her. Test results provide attention indices which allow to assess capability to concentrate, to assess work pace and the accuracy with which the test itself is filled out, as well as constancy and variability of test results.

Changes in relation to d2 include: a training sheet which features instructions, examples, and exercises;  more characters in each line, a self-copying sheet to assess results, and a simplified procedure for indices calculation.

Norms will be developed for the Polish population of adults aged 20-79.

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