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Body size estimation: testing a new mirror-based assessment method.

Clare Farrell1, Roz Shafran, Christopher G Fairburn

  • 1Department of Psychiatry, Oxford University, Oxford, United Kingdom.

The International Journal of Eating Disorders
|May 29, 2003
PubMed
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A new body size estimation method, using perception rather than memory, yielded significantly larger estimates than the traditional method. This finding impacts body image research.

Area of Science:

  • Psychology
  • Body Image Research

Background:

  • Accurate body size estimation is crucial for understanding body image perception.
  • Existing methods often rely on memory, which may not reflect real-time perception.

Purpose of the Study:

  • To compare a novel, ecologically valid body size estimation technique with a conventional approach.
  • To investigate the impact of perception-based versus memory-based estimation on body size assessment.

Main Methods:

  • A new method utilizing a "mirror-sized" image to assess perceived body size was employed.
  • Fifty-five healthy women participated, comparing estimations from the new method against a standard one.

Main Results:

  • Estimates derived from the new perception-based method were significantly larger than those from the existing memory-based method (p <.001).

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  • This discrepancy was specific to body size estimation and absent when estimating neutral images.

    • Conclusions:

    • The study demonstrates that ecologically valid, perception-based body size estimation yields different results compared to traditional memory-based methods.
    • These findings are significant for future research exploring factors influencing body size perception and body image.