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SWITCH Task switching

D. Gmehlin, C. Stelzel, M. Weisbrod, S. Kaiser & S. Aschenbrenner


Measures flexible task-switching ability as an aspect of the executive functions.
There are many everyday situations in which rigid adherence to a particular behavior may be dysfunctional. It results in the actor getting no closer to his goal. In such situations it is appropriate and necessary to interrupt an action and switch to another. This special ability test has been developed to identify deficits in this area. It is therefore particularly suitable for use in clinical neuropsychology.
Particular attention has been paid to the need to assess possible impairments independently of other cognitive influences such as language ability or spatial attention. The test can be used to assess neuropsychological deficits, for the preparation of therapeutic intervention and to predict everyday performance.

A sequence of circles and triangles in either light or dark grey is presented. The respondent must react to either the shape (circle or triangle) or brightness (light or dark) of the figure by pressing the appropriate button. The aspect that needs to be attended to changes constantly in the course of the test, so that the respondent must alternate in a predictable rhythm between processing the stimuli on the basis of shape and processing them on the basis of color.

Formas de prueba

One test form.


The following main variables are scored:

  • Task switching speed: The difference between mean reaction time for shift tasks and mean reaction time for repetition tasks – measure of flexible task-switching ability.
  • Task switching accuracy: The difference between the percentage of correct answers for shift tasks and the percentage of correct answers for repetition tasks – measure of flexible task-switching ability.

Elementos de evaluación

Working time
Confidence interval
Profile analysis
Test protocol
Item analysis protocol
Progress chart
Special diagrammatic representation of results
Personalized Word report
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Tipo de prueba

Special Ability Tests

Información de prueba

language-free item material
parallel test form
conforms to the Rasch-model
additional device required
high level of test security
wide norm spectrum
test form available for online presentation - open mode
links to CogniPlus
supervisor-supported testing




approx. 12 minutes


Norms for ages 16+.