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The intuitive conceptualization and perception of variance.

Elizaveta Konovalova1, Thorsten Pachur2

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People intuitively understand statistical variance, but their judgments also consider stimulus variety and range, not just deviations from the average. This research explores intuitive variance judgments.

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Area of Science:

  • Cognitive Psychology
  • Decision Making
  • Statistical Cognition

Background:

  • Statistical concepts like mean and correlation are well-studied in intuitive cognition.
  • Understanding how people conceptualize and judge statistical variance is less explored.

Purpose of the Study:

  • To investigate people's intuitive understanding of variance.
  • To identify factors influencing judgments of variance.

Main Methods:

  • Conducted a survey to explore conceptualizations of variance.
  • Performed three experimental studies to test factors affecting variance judgments.

Main Results:

  • People's concepts of variance include statistical variance, pairwise distance, range, and variety.
  • Judgments of variance are influenced by statistical variance, variety, and range.

Conclusions:

  • People's intuitive understanding of variance is multifaceted.
  • Findings can refine psychological models of variance judgment.