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The food amount rating scale: development, reliability, and validity.

Faith-Anne Dohm¹, Ruth H Striegel-Moore

¹Graduate School of Education & Allied Professions, Fairfield University, Fairfield, Connecticut 06430, USA. fdohm@fair1.fairfield.edu

Obesity Research

|November 14, 2002

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The Food Amount Rating Scale (FARS) reliably measures how individuals perceive food quantities, finding that women rate larger amounts than men. This tool aids research into subjective food judgments and eating behaviors.

Area of Science:

Psychology
Nutrition Science
Eating Disorder Research

Background:

Binge eating research assumes shared understanding of 'large food amounts'.
Individual differences in food amount perception are largely unexamined.
The Food Amount Rating Scale (FARS) was developed to standardize food amount assessment.

Purpose of the Study:

To develop and validate the Food Amount Rating Scale (FARS).
To assess the psychometric properties of the FARS.
To investigate potential gender differences in food amount perception.

Main Methods:

Developed two versions of the FARS (Form W for women, Form M for men).
Assessed content validity with eating disorder researchers.
Evaluated test-retest and split-half reliability for both forms.

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Main Results:

FARS demonstrated adequate test-retest reliability (Form W=0.85, Form M=0.87).
FARS showed strong split-half reliability (Form W=0.90, Form M=0.89).
Convergent validity was supported, with higher ratings for average women than men.

Conclusions:

The FARS is a psychometrically sound instrument.
It is suitable for basic research on individual differences in food judgment.
It can be applied in clinical settings to understand subjective food perceptions.