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DT Determination Test

G. Schuhfried
NEURO
TRAFFIC
SPORT
HR

Application

Assesses reactive stress tolerance and ability to react under complex stimulus conditions.
The Determination Test is a complex multi-stimuli reaction test involving the presentation of both colored stimuli and acoustic signals to which the respondent reacts by pressing the appropriate buttons on the response panel and using the foot pedals. The stress element of the DT arises from the need to sustain continuous, rapid and varying responses to rapidly changing stimuli. Because test presentation is adaptive, any individual can be confronted with stimuli at a frequency sufficiently high to place him in a situation in which he is over-challenged and can no longer execute the necessary responses. The DT can therefore be used to investigate behavior under various levels of psychophysical stress. The test is used in recruitment for positions with safety-related requirements (safety assessments), in staff development, in clinical neuropsychology, in traffic psychology and in sports psychology.

Administration

Respondents react as quickly as they can to optical or acoustic stimuli by pressing the appropriate buttons on the response panel or using the foot pedals.

Test forms

S1: Short form with adaptive stimulus presentation (all stimulus types)
S2: Long form with adaptive stimulus presentation (all stimulus types)
S3: Free stimulus duration (colors and tones; Rostock Form)
S4: Combination of free and fixed stimulus duration (Hanover Form)
S5: Fixed stimulus duration (all stimulus types; Vienna Form A)
S6: Fixed stimulus presentation (colors; Vienna Form B)

Scoring

The following main variables are scored, depending on the test form:

  • S1 and S2 (adaptive mode):
    Measure of the respondent’s reactive stress tolerance and ability to react under stress conditions.
     
  • S3 (action mode):
    Median reaction time – measure of the ability to react (based on the speed and accuracy of the ability to react).
     
  • S4: Test form S4 (action and reaction mode):
    • Subtest 1 – Action mode: description and interpretation of the variables as for test form S3.
    • Subtest 2 – Reaction mode: description and interpretation of the variables as for test forms S5 and S6.
       
  • S5 and S6 (reaction mode):
    Median reaction time – Measure of the ability to react and reactive stress tolerance.

Scoring elements

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

An answer matrix shows the reactions given, categorized according to the type of stimulus (colors, tones, foot). It provides detailed information about the type and number of responses actually made to the given stimuli. This can be used to investigate whether a higher than average number of problems arose in connection with a particular stimulus.

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Test type

Special Ability Tests

Test information

adaptive
modular
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

Languages

Arabic
Chinese (simplified)
Chinese (traditional)
Croatian
Czech
Dutch
English
Farsi
Finnish
French
German
Greek
Hindi
Hungarian
Icelandic
Italian
Polish
Portuguese
Portuguese (Brazil)
Romanian
Russian
Serbian
Slovak
Slovene
Spanish
Swedish
Turkish
Vietnamese

Duration

approx. 6-15 minutes, depending on test form

Age

Norms for ages 8+.

Special features

Many special norms are available, e.g. for professional drivers, athletes and stroke patients.