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Repeated retention testing effects do not generalize to a contextual interference protocol.

Jeffrey T Fairbrother1, John B Shea, T Scott Marzilli

  • 1Department of Exercise, Sport, and Leisure Studies, University of Tennessee, USA. jfairbr1@utk.edu

Research Quarterly for Exercise and Sport
|February 16, 2008
PubMed
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Repeated retention testing in contextual interference (CI) protocols did not harm performance in most cases. While one experiment showed a benefit, practice effects may have influenced the results.

Area of Science:

  • Motor Learning
  • Cognitive Psychology
  • Human Performance

Background:

  • Contextual interference (CI) is a learning strategy where varied skills are practiced in an interleaved order.
  • Retention testing assesses long-term memory of learned skills.
  • The impact of repeated retention testing on CI effectiveness is not fully understood.

Purpose of the Study:

  • To investigate the effects of repeated retention testing within a contextual interference (CI) protocol.
  • To determine if multiple retention tests influence learning outcomes in CI paradigms.
  • To examine potential confounding factors, such as practice effects, associated with repeated testing.

Main Methods:

  • Three experiments were conducted using key-pressing and sequential-timing tasks.

Related Experiment Videos

  • Participants were assigned to either one or two retention test conditions (10 min and 24 hr, or 24 hr only).
  • Performance was measured by response time, errors, and timing accuracy.

    • Main Results:

    • Contextual interference (CI) effects were observed across all experiments.
    • Repeated retention testing did not negatively impact performance in Experiments 1 and 3.
    • Experiment 2 showed superior performance in the two-test condition, though practice effects were a potential confound.

    Conclusions:

    • Repeated retention testing appears to be generally compatible with contextual interference (CI) protocols.
    • The findings suggest that multiple retention tests do not inherently disrupt learning in CI studies.
    • Further research may be needed to fully disentangle practice effects from genuine repeated testing benefits.