Inside Ockham's razor: A mechanism driving preferences for simpler explanations.

People often prefer simpler explanations, defined as those that posit the presence of fewer causes (e.g., positing the presence of a single cause, Cause A, rather than two causes, Causes B and C, to explain observed effects). Here, we test one hypothesis about the mechanisms underlying this preferen...

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Publicado en:Memory & Cognition Vol. 53; no. 3; pp. 746 - 775
Autores principales: Vrantsidis, Thalia H., Lombrozo, Tania
Formato: Artículo
Publicado: Springer Nature Apr2025
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Acceso en línea:Ver este registro en EBSCOhost
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        atl: Inside Ockham's razor: A mechanism driving preferences for simpler explanations.
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        au:
          Vrantsidis, Thalia H.
          Lombrozo, Tania
        affil:
          https://ror.org/0432jq872 Department of Psychology, Mississippi State University, Rice Hall, 39762, Mississippi State, MS, USA
          https://ror.org/00hx57361 Department of Psychology, Princeton University, 08544, Princeton, NJ, USA
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        United States
        Manipulative behavior
        Decision making
        Problem solving
        Achievement tests
        Judgment (Psychology)
        Descriptive statistics
        Mathematical models
        Comparative studies
        Theory
        Critical thinking
      sug:
        subj:
          Manipulative behavior
          Decision making
          Problem solving
          Achievement tests
          Judgment (Psychology)
          United States
          Descriptive statistics
          Mathematical models
          Comparative studies
          Theory
          Critical thinking
      keyword:
        Complexity
        Explanation
        Explanatory virtues
        Ockham's razor
        Probability
        Simplicity
        Complexity
        Explanation
        Explanatory virtues
        Ockham's razor
        Probability
        Simplicity
      ab: People often prefer simpler explanations, defined as those that posit the presence of fewer causes (e.g., positing the presence of a single cause, Cause A, rather than two causes, Causes B and C, to explain observed effects). Here, we test one hypothesis about the mechanisms underlying this preference: that people tend to reason as if they are using "agnostic" explanations, which remain neutral about the presence/absence of additional causes (e.g., comparing "A" vs. "B and C," while remaining neutral about the status of B and C when considering "A," or of A when considering "B and C"), even in cases where "atheist" explanations, which specify the absence of additional causes (e.g., "A and not B or C" vs. "B and C and not A"), are more appropriate. Three studies with US-based samples (total N = 982) tested this idea by using scenarios for which agnostic and atheist strategies produce diverging simplicity/complexity preferences, and asking participants to compare explanations provided in atheist form. Results suggest that people tend to ignore absent causes, thus overgeneralizing agnostic strategies, which can produce preferences for simpler explanations even when the complex explanation is objectively more probable. However, these unwarranted preferences were reduced by manipulations that encouraged participants to consider absent causes: making absences necessary to produce the effects (Study 2), or describing absences as causes that produce alternative effects (Study 3). These results shed light on the mechanisms driving preferences for simpler explanations, and on when these mechanisms are likely to lead people astray.
      pubtype: Academic Journal
      doctype: Article
      src: R
    language: English
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