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Related Experiment Video

Updated: Jul 17, 2026

Errors as a Means of Reducing Impulsive Food Choice

Errors as a Means of Reducing Impulsive Food Choice

Published on: June 5, 2016

Parent outcome expectancies for purchasing fruit and vegetables: a validation.

Tom Baranowski¹, Kathy Watson, Mariam Missaghian

¹Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030-2600, USA. tbaranow@bcm.tmc.edu

Public Health Nutrition

|February 10, 2007

Summary

Validated scales measure fruit and vegetable purchasing expectations. These tools aid in understanding family food choices and promoting healthier eating habits.

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Errors as a Means of Reducing Impulsive Food Choice

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Studying Food Reward and Motivation in Humans

Studying Food Reward and Motivation in Humans

Published on: March 19, 2014

Area of Science:

Behavioral Science
Nutrition Science
Psychology

Background:

Understanding factors influencing fruit and vegetable (F&V) purchasing is crucial for public health.
Existing measures may not fully capture the nuances of F&V purchasing decisions, particularly concerning fresh versus other forms.

Purpose of the Study:

To validate four scales assessing outcome expectancies for purchasing fruit and vegetables.
To assess comparative outcome expectancies for purchasing fresh versus other forms of F&V.

Main Methods:

A survey instrument was administered twice to 161 food shoppers with children.
Interviews were conducted via telephone after recruitment in front of supermarkets and grocery stores.

Main Results:

Validated single-dimension scales for fruit and vegetable purchasing outcome expectancies, and comparative (fresh vs. other) purchasing expectancies.
Item Response Theory provided interpretable patterns of item difficulty.
Scales for fruit and vegetable purchasing, and fresh fruit comparative purchasing, correlated with home F&V availability, controlling for social desirability.

Conclusions:

The validated scales offer a valuable tool for researchers studying family F&V purchasing.
These instruments can contribute to a better understanding of the decision-making process behind family F&V consumption.