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Related Experiment Videos

Effect of instructions on elementary cognitive tasks sensitive to individual differences.

D K Detterman1, C G Andrist

  • 1Case Western Reserve University.

The American Journal of Psychology
|January 1, 1990
PubMed
Summary

Cognitive task performance is significantly influenced by instructions. Different instruction types (written, non-verbal, none) affect task outcomes and general intelligence correlations, especially in complex cognitive tasks.

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Area of Science:

  • Cognitive Psychology
  • Experimental Psychology

Background:

  • Understanding how external factors influence cognitive performance is crucial.
  • Basic cognitive tasks are fundamental for assessing cognitive abilities.

Purpose of the Study:

  • To investigate the impact of different types of instructions on basic cognitive tasks.
  • To examine how instructions affect both mean performance and individual differences.

Main Methods:

  • Two studies were conducted with college students and military recruits.
  • Participants completed tasks like choice reaction time, match-to-sample, tachistoscopic threshold, and probed recall.
  • Conditions included written, non-verbal, or no instructions.

Main Results:

Related Experiment Videos

  • Instruction type significantly altered mean performance across tasks.
  • Correlations between task parameters and general intelligence varied with instructional conditions.
  • Group differences diminished with practice, and individual differences were more affected in complex tasks.

    • Conclusions:

    • Instructions play a significant role in shaping performance on basic cognitive tasks.
    • The effect of instructions on individual differences is less pronounced than on mean performance.