TY - JOUR
T1 - Psychometric Properties of the Healthful Eating Belief Scales for Persons at Risk of Diabetes
AU - Blue, Carolyn L.
AU - Marrero, David G.
N1 - Funding Information:
This research was supported by the American Association of Diabetes Educators and Sigma Theta Tau International and the Indiana University School of Nursing, T32 Training Grant, NR 07066, National Institute of Nursing Research, PI: Joan K. Austin, DNS, RN, FAAN.
PY - 2006/5
Y1 - 2006/5
N2 - 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.
AB - 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.
KW - behavioral research
KW - beliefs
KW - diabetes mellitus
KW - health behavior
KW - theory of planned behavior
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U2 - 10.1016/j.jneb.2006.01.010
DO - 10.1016/j.jneb.2006.01.010
M3 - Article
C2 - 16731447
AN - SCOPUS:33646830107
SN - 1499-4046
VL - 38
SP - 134
EP - 142
JO - Journal of Nutrition Education and Behavior
JF - Journal of Nutrition Education and Behavior
IS - 3
ER -