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Performance evaluation tests for environmental research (PETER): code substitution test.

R L Pepper, R S Kennedy, A C Bittner

    Perceptual and Motor Skills
    |December 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

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    Repeated testing stabilizes code substitution performance after 8 days, showing reliable results in lab and at-sea settings. The Code Substitution Test is recommended for the PETER battery.

    Area of Science:

    • Cognitive psychology
    • Human factors engineering
    • Maritime psychology

    Background:

    • Code substitution tasks assess cognitive performance.
    • Understanding test-retest reliability is crucial for performance metrics.
    • Evaluating performance in both controlled and real-world environments is necessary.

    Purpose of the Study:

    • To determine the reliability and stability of code substitution performance.
    • To assess the impact of repeated testing on performance metrics.
    • To compare performance under laboratory versus at-sea conditions.

    Main Methods:

    • Three experiments were conducted involving repeated code substitution testing.
    • Experiment 1: 15 daily 2-min trials; Experiment 2: 15 daily 4-min trials.

    Related Experiment Videos

  • Experiment 3: Hourly testing over 4 days (2 dockside, 2 at-sea) with US Coast Guardsmen.

    • Main Results:

    • Performance metrics (means, variances, correlations) stabilized after 8 days in Experiments 1 and 2.
    • Stabilized reliabilities were 0.75 (Exp. 1) and 0.80 (Exp. 2).
    • At-sea performance in Experiment 3 was comparable, except for decrements due to motion sickness.

    Conclusions:

    • The Code Substitution Test demonstrates good reliability and stability with repeated administration.
    • Performance is generally stable across laboratory and at-sea conditions, barring motion sickness.
    • The Code Substitution Test is recommended for the PETER battery for its psychometric properties.