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    WAF

    Author: W. Sturm
    Perception and attention functions battery
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    Please note that this product can only be administrated if you have an online VTS Standard Subscription or a local VTS version from 8.10.00 or higher.

    This product requires an additional device.

    Field of Application+

    NEURO
    TRAFFIC
    SPORT
    HR
    Detailed Description+

    Measures subfunctions of attention.
    These subfunctions measure alertness, vigilance & sustained attention, focused attention, divided attention, selective attention, spatial attention & neglect, smooth pursuit eye movements, and visual scanning.
    Long and short forms are available for the subtests which make it possible to measure dimensions of attention under different presentation modalities. There are thus WAF subtests for visual, auditory, or cross-modal test presentations. In some subtests of the WAF test battery automated and controlled (top-down) aspects of attention are also measured separately; the stimuli either become more prominent because the intensity level is increased ("popping out"), or they become less prominent. Both attention processes are relevant in everyday life; both can interact and both can be selectively impaired, for example as a result of brain damage, since they are based on different cerebral networks.
    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 used mainly in the context of clinical neuropsychological investigations since they provide 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. 

    Test forms+

    For each of the dimensions different test forms are available, enabling dimensions of attention to be assessed in different presentation modalities (visual, auditory, and cross-modal).
    Overall, 42 subtests are available which can be presented independently or in any combination thanks to the expanded options of the WAF Wizard.
    Predefined standard tests, depending on the investigations, offer a fast/simple possibility for screening, obtaining a general overview, or for testing with different presentation modalities, for different neuropsychological disorders, or for children.

     

    Alertness (WAFA)
    There is a standard form and a short form for every subtest.
    Subtests: Intrinsic (visual, auditory), phasic (unimodal visual, unimodal auditory, cross-modal visual, cross-modal auditory).

    Vigilance & sustained attention (WAFV)
    There is a standard form and a short form for every subtest.
    Subtest: Vigilance (visual, auditory), sustained attention (visual, auditory). The short forms for sustained attention have been developed especially for children and young people.

    Focused attention
    Subtests: Unimodal (visual, auditory), cross-modal (visual/auditory).

    Divided attention
    There is a standard form and a short form for every subtest.
    Subtests: Unimodal (visual), cross-modal (visual/auditory).

    Spatial Attention & Neglect
    Subtests: Controlled or automated spatial shift of attention. An additional test checks neglect under extinction conditions.

    Selective attention
    Subtests: Unimodal (visual, auditory), cross-modal (visual/auditory).

    Smooth pursuit eye movements
    Standard form and short form.

    Visual scanning
    Standard form and short form.

    Task+

    Alertness (WAFA).
    The respondent reacts to a simple visual or auditory stimulus. Cues are given in the same stimulus modality or a different one (intrinsic vs. phasic alertness). Fatigue and resilience parameters can be measured thanks to special norming.

    Vigilance & sustained attention (WAFV).
    The respondent reacts as soon as he/she notices an intensity change in a black square on the screen or in a tone.

    Focused attention.
    Depending on the subtest, the respondent is required to focus simultaneously on two different geometric figures, on a sound in a babble of voices or on one visual and one auditory stimulus. At certain intervals the stimuli change their position and intensity. The respondent reacts as soon as the defined stimulus becomes either lighter or softer twice in succession.

    Divided attention.
    Depending on the subtest, the respondent is required to focus simultaneously on two different geometric figures or on one figure and one auditory stimulus. At certain intervals the stimuli change their intensity. The respondent reacts as soon as one of the two stimuli becomes either lighter or softer twice in succession.

    Selective attention.
    The respondent receives various geometric and/or auditory stimuli. He/She reacts to intensity changes in predefined relevant conditions.

    Spatial attention & neglect.
    The spatial orienting of attention is measured using four spatial positions in a task similar to a Posner paradigm. The respondent reacts to peripheral (exogenous) and central (endogenous) spatial cues.
    In the neglect test, the respondent reacts to stimuli presented at various positions in the right or left visual field or simultaneously in equivalent positions in both halves of the field of vision (extinction condition).

    Smooth pursuit eye movements. 
    The respondent tracks with his eyes a circle that is moving across the screen and reacts as soon as the circle becomes brighter.

    Visual scanning. 
    The respondent searches a 6x6 matrix of similar visual stimuli and decides respectively whether a previously defined stimulus is contained in it or not.

    Dimensions+

    Attention

    Languages+

    Hungarian

    Turkish

    Dutch

    English (USA)

    French

    Chinese (Taiwan)

    Italian

    Portuguese

    Slovak

    Spanish

    German

    Polish

    Russian

    Chinese

    Czech

    Hindi

    Slovene

    Duration+

    Alertness: Between 2 and 5 minutes, depending on the subtest.
    Vigilance and sustained attention: Between 18 and 32 minutes per subtest.
    Focused attention: Approx. 10 minutes per subtest.
    Divided attention: Between 6 and 15 minutes per subtest.
    Selective attention: Approx. 8 minutes per subtest.
    Spatial attention & neglect: Between 6 and 12 minutes per subtest.
    Smooth pursuit eye movements: Between 3 and 5 minutes per subtest.
    Visual scanning: Between 7 and 15 minutes per subtest.

    Age+

    Norms for ages 7+.

    Test administration+

    Controlled Mode


    Scoring+

    Depending on the subtest, a main variable with the name of the function of attention it measures is reported. These variables are a logarithmic mean of the individual reaction times.

    Furthermore, a measure of dispersion of the reaction times as well as different error types are reported as subsidiary variables for each subtest.

    Additional information:

    • Dimension-specific indices: Measure of the corresponding attention function.
    • Norm adjustment: The impact of age, gender, and education is automatically considered in the scoring.
    • Display and scoring of follow-up assessments in a compact overview.
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    Products specifications
    LanguagesChinese
    LanguagesChinese (Taiwan)
    LanguagesCzech
    LanguagesDutch
    LanguagesEnglish (USA)
    LanguagesFrench
    LanguagesGerman
    LanguagesHindi
    LanguagesHungarian
    LanguagesItalian
    LanguagesPolish
    LanguagesPortuguese
    LanguagesRussian
    LanguagesSlovak
    LanguagesSlovene
    LanguagesSpanish
    LanguagesTurkish
    Test informationwide norm spectrum <i class="fas fa-info-circle tooltips test-info" data-container="body" data-placement="top" data-toggle="tooltip" title="In tests with a wide norm spectrum the norms cover a wide age range (wider than ages 16-84), or multiple norm samples (at least two) are available."></i>
    Test informationmodular <i class="fas fa-info-circle tooltips test-info" data-container="body" data-placement="top" data-toggle="tooltip" title="A test is described as modular if the user can decide which scales or subtests are to be presented. "></i>
    Test informationlanguage-free item material <i class="fas fa-info-circle tooltips test-info" data-container="body" data-placement="top" data-toggle="tooltip" title="A test that uses language-free item material is one that can be worked by a respondent with no linguistic knowledge, provided that the instructions have been understood (for example with support from the test administrator)."></i>
    Test informationlinks to CogniPlus <i class="fas fa-info-circle tooltips test-info" data-container="body" data-placement="top" data-toggle="tooltip" title="For tests that are linked to CogniPlus there is a CogniPlus training program specifically designed to train the ability measured by the test."></i>
    Test informationadditional device required <i class="fas fa-info-circle tooltips test-info" data-container="body" data-placement="top" data-toggle="tooltip" title="A SCHUHFRIED peripheral device (e.g. a Response Panel) is needed for proper administration of the test."></i>
    Test informationhigh level of test security <i class="fas fa-info-circle tooltips test-info" data-container="body" data-placement="top" data-toggle="tooltip" title="A test has a high level of test security if steps have been taken to prevent disclosure of the answers or answer scheme. Examples of such steps include prevention of unsupervised online testing, the provision of parallel test forms and the use of objective personality tests and adaptive tests."></i>
    Test informationsupervisor-supported testing <i class="fas fa-info-circle tooltips test-info" data-container="body" data-placement="top" data-toggle="tooltip" title="The supervisor describes the tasks verbally. A sample task is then presented. This promotes interaction between the supervisor and respondent."></i>
    DimensionsAttention
    Test typeSpecial Ability Tests