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Factors affecting developmental changes in the speed of processing.

C Roth

    Journal of Experimental Child Psychology
    |June 1, 1983
    PubMed
    Summary
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    Children's processing speed can match adults' when they have similar domain knowledge. This study shows knowledge, not just age, impacts cognitive processing speed, highlighting domain-specific effects.

    Area of Science:

    • Cognitive Psychology
    • Developmental Psychology
    • Neuroscience

    Background:

    • Developmental studies often confound age with task-specific knowledge and strategies.
    • Understanding processing speed requires disentangling these factors.

    Purpose of the Study:

    • To investigate the independent effects of domain knowledge on processing speed, controlling for age and strategy use.
    • To determine if adult processing speed advantages are solely due to age or also knowledge.

    Main Methods:

    • Assessed strategies and domain knowledge independently.
    • Measured processing rates on a "same/different" judgment task with manipulated domain knowledge.
    • Controlled for age and strategy usage.

    Main Results:

    Related Experiment Videos

    • Adult superiority in processing speed was significantly reduced when children had equivalent domain knowledge.
    • The effect of knowledge on processing speed was domain-specific.
    • Knowledge differences impacted processing rates in both children and adults.

    Conclusions:

    • Domain knowledge plays a critical role in cognitive processing speed.
    • Part of the observed age-related differences in processing speed is attributable to knowledge disparities.
    • Future research should consider knowledge as a key variable in developmental cognitive studies.