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The perceptual threshold for overweight.

William G Johnson¹, Regan Stewart, Andrea T Pusser

¹Department of Psychology, The Citadel, 171 Moultrie St., Charleston, SC 29409, USA. johnsonw1@citadel.edu

Eating Behaviors

|June 6, 2012

Summary

This summary is machine-generated.

Social norms around weight contribute to the obesity epidemic. Researchers developed and validated a "perceptual threshold for overweight" measure to assess these norms, finding it psychometrically sound for obesity research.

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Area of Science:

Public Health
Psychology
Sociology

Background:

Normative overweight influences the obesity epidemic by shaping social weight perceptions.
A key aspect is the perceptual threshold for overweight, defining the transition from normal to overweight body weight.
Understanding this threshold is crucial for addressing societal weight norms.

Purpose of the Study:

Introduce and evaluate the psychometric properties of the perceptual threshold for overweight measure.
Assess the measure's independence from Body Mass Index (BMI) and body image.
Determine the reliability of the perceptual threshold measure.

Main Methods:

Three studies were conducted involving diverse samples (Ukrainian, Mexican, US Black, White, Hispanic).
Factor analyses were used to explore the construct's structure and its relationship with BMI and body image.
Classical Test (CT) and Generalizability (GT) methods assessed the reliability of the perceptual threshold.

Main Results:

Factor analyses consistently identified two distinct factors: Perceptual Threshold for Overweight and Body Image/BMI.
The factor structures were nearly identical across six analyses in Studies 1 and 2.
Study 3 demonstrated adequate reliability for the perceptual threshold using both CT and GT methods.

Conclusions:

The perceptual threshold for overweight measure exhibits sound psychometric properties.
This validated measure can be utilized to study the social transmission of weight.
The findings support the use of this measure in obesity prevention and intervention programs.