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Related Experiment Videos

Inconsistent visual analyses of intrasubject data.

A Deprospero1, S Cohen

  • 1Weston Hospital.

Journal of Applied Behavior Analysis
|January 1, 1979
PubMed
Summary

Graphic characteristics significantly influence visual inspection of intrasubject replication data. Reviewers weigh patterns of phase mean changes over variability for assessing experimental control.

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Area of Science:

  • Behavioral Science
  • Research Methodology

Background:

  • Visual inspection is the primary method for evaluating functional control in intrasubject replication data.
  • Understanding how graphic characteristics affect this evaluation is crucial for consistent data interpretation.

Purpose of the Study:

  • To investigate the influence of specific graphic characteristics on the visual evaluation of experimental control.
  • To identify the criteria reviewers use when assessing intrasubject replication data.

Main Methods:

  • 36 "ABAB reversal" figures were created to represent intrasubject replication data.
  • 250 behavioral journal reviewers rated each figure on a 100-point scale for "experimental control."
  • Reviewers also provided verbal descriptions of their evaluation criteria.

Main Results:

  • Mean interrater agreement among reviewers was 0.61.
  • Graphic characteristics collectively influence evaluative judgments, not in isolation.
  • The pattern of phase mean changes was more critical than the degree of mean shift or variability.

Conclusions:

  • Evaluative criteria include topographic characteristics, data presentation format, and intra- and extra-experimental circumstances.
  • The pattern of experimental effects depicted in data graphics is a key factor in perceived experimental control.
  • Standardizing the understanding of these graphic influences can improve the reliability of visual data analysis.

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