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Related Concept Videos

Comparing Copy Number Variations and SNPs02:26

Comparing Copy Number Variations and SNPs

Sequencing of the human genome has opened up several best-kept secrets of the genome. Scientists have identified thousands of genome variations that exist within a population. These variations can be a single nucleotide or a larger chromosomal variation.
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Related Experiment Video

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Operant Procedures for Assessing Behavioral Flexibility in Rats
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A Comparison of Stimulus Set Sizes: Systematic Replication with Operant Analysis Acquisition Criteria.

Hui Zhi1, Daniel M Fienup1, R Douglas Greer1

  • 1Department of Health and Behavior Studies, Teachers College, Columbia University, 525 West 120th Street, Box 223, New York, NY 10027 USA.

Behavior Analysis in Practice
|June 26, 2023
PubMed
Summary

Teaching more sight words at once (set-size 12) improved long-term retention, but teaching fewer words (set-size 3) was faster for initial learning. The study explored the definition of effectiveness in skill acquisition.

Keywords:
Learn unit instructionOperant analysis acquisition criteriaSkill acquisitionStimulus set sizes

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Area of Science:

  • Behavioral science
  • Applied behavior analysis

Background:

  • Stimulus set size can influence learning efficiency and retention.
  • Previous research has yielded mixed results regarding optimal stimulus set sizes for skill acquisition.

Purpose of the Study:

  • To systematically replicate and extend research on the effects of stimulus set size on skill acquisition and maintenance.
  • To compare the efficiency of learning and long-term retention across different set sizes (3, 6, and 12 sight words).

Main Methods:

  • Participants were taught sight words simultaneously in sets of 3, 6, or 12.
  • Instruction continued until each sight word met an individual acquisition criterion.
  • Maintenance was assessed after acquisition.

Main Results:

  • Set-size 3 demonstrated greater efficiency in initial acquisition compared to set-sizes 6 and 12.
  • Set-size 12 resulted in the highest levels of maintenance for all participants.
  • A trade-off between acquisition speed and maintenance was observed.

Conclusions:

  • The optimal stimulus set size for teaching sight words depends on whether the goal is rapid acquisition or long-term retention.
  • The definition of "effectiveness" in skill acquisition requires careful consideration of both learning speed and durability.