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RT Reaction Test

G. Schuhfried
Neuro
Traffic
Sport
HR

Application

Assesses different aspects of reaction behavior, depending on test form.
Reaction time can be measured for both simple choice and multiple-choice reactions. Light and sound stimulus modalities are available, with a choice of the colors red, yellow or white, so that different stimulus constellations for the measurement of reaction time can be created. These can range in the different test forms from individual stimuli to simultaneous or sequentially presented stimulus combinations. The use of a rest key and a reaction key makes it possible to distinguish between reaction and motor time.

The main fields in which reaction times are measured are traffic psychology, personnel psychology (safety assessments), sports psychology and pharmacopsychology. In recent years there has also been an increase in the use of reaction time measurements in neurology, psychiatry, rehabilitation, and labor medicine.

Administration

Respondents react as quickly as they can to optical or acoustic signals.
This involves pressing or releasing a button as quickly as possible when a simple light signal (yellow or red light), a tone or a combination of two stimuli (yellow and tone or yellow and red) is presented.

Test forms

S1: Simple reaction, yellow – reaction to critical stimulus
S2: Simple reaction, tone – reaction to critical stimulus
S3: Choice reaction, yellow/tone – reaction to critical stimulus combination
S4: Choice reaction, yellow/red – reaction to critical stimulus combination
S5: Choice reaction, yellow/tone, yellow/red – reaction to critical stimulus combination
S6: Simple reaction, white under monotonous conditions
S7: Measurement of alertness – simple reaction, yellow (with acoustic cue)
S8: Measurement of alertness – simple reaction, tone (with optical cue)

Scoring

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

  • S1-S6:
    • Mean reaction time: Measure of reaction speed in response to relevant stimuli.
    • Mean motor time: Measure of the speed of movement in planned action sequences (not in S6).
  • S7/S8:
    • Difference in mean reaction time without and with cue: Indicator of difference in reaction time between tonic and phasic alertness.
    • Difference in mean motor time without and with cue: Indicator of difference in motor time between tonic and phasic alertness.

 

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

The manual contains notes on interpretation in the context of traffic psychological assessment (cut-off scores for drivers in various groups).

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
Bulgarian
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. 5-10 minutes, depending on test form

Age

Norms for ages 4+.

Special features

Special norms are available for older drivers and professional drivers (S3, S5).
The test forms provide a sophisticated combination of all stimulus variants.