Children's Familiarity With Snack Foods Changes Expectations About Fullness

This study has been completed.
Information provided by:
University of Bristol Identifier:
First received: July 26, 2011
Last updated: August 12, 2011
Last verified: July 2011
The purpose of this study was to measure and quantify children's beliefs about the satiating properties (i.e. expected satiation)of snack foods. The investigators predicted that children who were especially familiar with snack foods would expect them to deliver greater satiation.


Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Cross-Sectional
Official Title: Children's Familiarity With Snack Foods Changes Expectations About Fullness

Resource links provided by NLM:

Further study details as provided by University of Bristol:

Enrollment: 70
Study Start Date: August 2008
Study Completion Date: December 2008
Primary Completion Date: December 2008 (Final data collection date for primary outcome measure)
Non-clinical sample of children

Detailed Description:

Palatability is regarded as a major determinant of children's energy intake. However, few studies have considered other "non-hedonic" beliefs about foods. In adults there is emerging evidence that expectations about the satiating properties of foods are an important determinant of meal size, and that these beliefs are learned over time.

In the current study, we measured and quantified children's 'expected satiation' across energy-dense snack foods using a psychophysical technique known as method of adjustment. Participants changed a comparison-food portion (pasta and tomato sauce) to match the satiation that they expected from a snack food. We predicted that children who were especially familiar with snack foods would expect them to generate greater satiation, and that children who were unfamiliar would match expected satiation based on the physical characteristics (perceived volume) of the foods.

In our study, seventy 11- to 12-year-old children completed computerised measures of expected satiation, perceived volume, familiarity, and liking across six snack foods. Our analyses focused on the associations between these measures. This approach enabled us to establish differences in healthy behaviours that are evident across individuals.


Ages Eligible for Study:   11 Years to 12 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Sampling Method:   Probability Sample
Study Population
Community sample

Inclusion Criteria:

  • aged 11 to 12 years
  • English speaking
  • normal or corrected-to-normal vision

Exclusion Criteria:

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Please refer to this study by its identifier: NCT01403753

United Kingdom
University of Bristol
Bristol, United Kingdom, BS8 1TU
Sponsors and Collaborators
University of Bristol
Study Director: Jeffrey M Brunstrom, PhD University of Bristol
  More Information

Additional publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Dr Charlotte Hardman, University of Bristol Identifier: NCT01403753     History of Changes
Other Study ID Numbers: 260608322
Study First Received: July 26, 2011
Last Updated: August 12, 2011
Health Authority: United Kingdom: Research Ethics Committee

Keywords provided by University of Bristol:
Dietary Habits processed this record on November 27, 2015