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Related Experiment Videos

Severely retarded children as impulsive responders: improved performance with response delay.

P W Lowry, L E Ross

    American Journal of Mental Deficiency
    |September 1, 1975
    PubMed
    Summary

    Children with severe intellectual disabilities improved matching task performance when given a 5-second delay, suggesting response time impacts learning. This delay strategy may enhance educational interventions for these students.

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    Area of Science:

    • Developmental Psychology
    • Special Education

    Background:

    • Investigated cognitive processing in children with severe intellectual disabilities.
    • Examined the relationship between response latency and errors in a visual matching task.

    Observation:

    • A strong negative correlation (r = -.92) was found between errors and response latency.
    • Impulsive responders struggled with prior receptive-language color discrimination training, unlike reflective responders.

    Findings:

    • Impulsive responders performed at chance levels without delay but achieved 80-90% accuracy with a 5-second delay.
    • Performance dropped to chance levels again when the delay was removed, highlighting the effect of response time.

    Implications:

    • Response delay can be a valuable tool to improve task performance in severely intellectually disabled children.

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  • Training programs may benefit from incorporating response time manipulations to enhance learning and reduce impulsivity.