WAF-ST

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Detailed Description+

The test combination Perception and Attention Functions - Standard Test (WAF-ST) measures fundamental subfunctions of attention and corresponds to the standard testing of the WAF VTS tests.

Attention performances are important for the successful handling of the tasks that the individual encounters in daily life. They are not independent of other skills but are a constituent of many processes of perception, memory, planning and acting, spatial orientation and problem-solving. Attention functions are thus basic skills that are required in almost every practical or intellectual activity. Many neurological and psychological disorders and diseases have an adverse effect on different aspects of attention performance. The WAF tests, which are model and guideline compliant (GNP), are therefore mainly used in the context of clinical neuropsychological investigations since they allow for both a global and a differentiated assessment of an individual’s strengths and weaknesses. They are also used for personnel selection (especially in the field of manufacturing & safety assessments) and for traffic psychological investigations. 

The WAF-ST test combination was compiled with the objective of mapping the most important subfunctions of attention a test set that is efficient in terms of time. In contrast to the WAF-KT test combination, the WAF-ST test combination contains as the third dimension spatial attention as well as the measure of resilience to fatigue (retesting) for intrinsic alertness in addition to subtests for measuring intrinsic alertness and divided attention. Before re-testing of alertness, a break of 8 minutes is intended to ensure an interval of at least 20 minutes between the two presentations of alertness.

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Validation+

The subtests of the WAF fulfill the requirements for content and construct validity. Since all subtests contained in WAF are measured using common and widely used paradigms, content validity is given. Construct validity can be confirmed via the analysis with construct-related and construct-unrelated tests. In addition, confirmatory factor analyses prove the factor structure based on different samples corresponding to common attentional models.

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