Psychometric Properties of the Healthful Eating Belief Scales for Persons at Risk of Diabetes

Carolyn L. Blue, David Marrero

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Objective: To examine the validity and reliability of Theory of Planned Behavior (TPB) scales for healthful eating for persons at risk for diabetes. Design: Cross-sectional, using a self-administered questionnaire. Setting: Community in the Midwest. Participants: 106 adults who self-identified based on one or more American Diabetes Association diabetes risks. Variables Measured: Behavioral, normative, and control beliefs; and attitude, subjective norm, perceived behavioral control, and intention to eat a healthful diet. Analysis: Construct validity was assessed with factor analyses and measurement and structural models using structural equation modeling. Reliability of the scales was assessed with Cronbach alpha and a 2-month test-retest. Results: Factor analysis loadings were greater than .37. Cronbach alphas for the behavioral, normative, and control belief scales were .80, .91, and .84, respectively. The measurement model revealed that the measures were significant estimates for the TPB constructs, and they fit well as indirect measures of attitude, subjective norm, and perceived behavioral control in predicting intention to eat a healthful diet. Test-retest revealed 2-month stability of the scales. Conclusions and Implications: Scales for measuring TPB behavioral, normative, and control beliefs were valid and reliable for use with adults at risk for diabetes. Further examination with minority persons is warranted.

Original languageEnglish
Pages (from-to)134-142
Number of pages9
JournalJournal of Nutrition Education and Behavior
Volume38
Issue number3
DOIs
StatePublished - May 2006

Fingerprint

healthy diet
eating behavior
Psychometrics
psychometrics
chronic illness
diabetes
Eating
Statistical Factor Analysis
human being
Diet
Structural Models
Reproducibility of Results
diet
behavioral norm
questionnaires
testing
construct validity
structural model
factor analysis
minority

Keywords

  • behavioral research
  • beliefs
  • diabetes mellitus
  • health behavior
  • theory of planned behavior

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Education
  • Food Science

Cite this

Psychometric Properties of the Healthful Eating Belief Scales for Persons at Risk of Diabetes. / Blue, Carolyn L.; Marrero, David.

In: Journal of Nutrition Education and Behavior, Vol. 38, No. 3, 05.2006, p. 134-142.

Research output: Contribution to journalArticle

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