Validity and reliability of the Food-Life Questionnaire. Short form

Gemma Sharp, Amanda D. Hutchinson, Ivanka Prichard, Carlene Wilson

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Measures of beliefs and attitudes towards food need to be valid, and easy to use and interpret. The present study aimed to establish the validity and reliability of a short-form of the Food-Life Questionnaire (FLQ). Participants (247 females; 118 males), recruited in South Australia, completed a questionnaire in 2012 incorporating the original FLQ, a revised short form (FLQ-SF), and measures of food choice and consumption. Validity (construct, criterion-related, and incremental) and reliability (internal consistency and short-form) were assessed. Factor analysis established that short-form items loaded onto five factors consistent with the original FLQ and explained 60% of variance. Moderate correlations were observed between the FLQ-SF and a measure of food choices (r= .32-.64), and the FLQ-SF predicted unhealthy food consumption over and above the full FLQ demonstrating criterion-related and incremental validity respectively. The final FLQ-SF included 21 items and had a Cronbach's alpha of .75. Short-form reliability was established with correlations between corresponding subscales of the FLQ and FLQ-SF ranging from r= .64-.84. Overall, the FLQ-SF is brief, psychometrically robust, and easy to administer. It should be considered an important tool in research informing public policies and programs that aim to improve food choices.

Original languageEnglish
Pages (from-to)112-118
Number of pages7
JournalAppetite
Volume70
DOIs
Publication statusPublished - 1 Nov 2013
Externally publishedYes

Keywords

  • Food attitudes
  • Food choice
  • Food consumption
  • Reliability
  • Shortened questionnaire
  • Validity

Cite this

Sharp, Gemma ; Hutchinson, Amanda D. ; Prichard, Ivanka ; Wilson, Carlene. / Validity and reliability of the Food-Life Questionnaire. Short form. In: Appetite. 2013 ; Vol. 70. pp. 112-118.
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Validity and reliability of the Food-Life Questionnaire. Short form. / Sharp, Gemma; Hutchinson, Amanda D.; Prichard, Ivanka; Wilson, Carlene.

In: Appetite, Vol. 70, 01.11.2013, p. 112-118.

Research output: Contribution to journalArticleResearchpeer-review

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