Abstract/Details

Development and validation of a weight-related behaviors questionnaire


2009 2009

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Abstract (summary)

Research shows the prevalence of obesity is increasing. The greatest increase occurs between 20 and 29 years of age. Obesity results from a long-term positive energy balance attributable to eating and exercise behaviors. Research shows effective behavior change interventions impact cognitive constructs which explain specific behaviors. Objectives were to develop and validate a weight-related behaviors questionnaire (WRBQ) for young adults with individual eating and exercise behavior scales and explore the impact of the scales to explain patterns of energy intake and exercise participation. The sample (N-721) consisted of 18 to 24 year old females (69.5%) and males (30.5%) with a mean age of 18.9 years (SD 1.1). Body mass index (BMI) was 23.1 kg/m2 (SD 3.5) and 24% overweight or obese (BMI≥25.0 kg/m2). Selected test items were generated from a literature review and finalized by an expert panel. Factor analysis was conducted to explore and confirm the structure of the two scales. Validation analyses were performed by univariate statistics and structural equation modeling using BMI, percent dietary fat, fruit and vegetable intake, and moderate to vigorous-intensity activity. The WRBQ has 31 items with four eating and three exercise behavior constructs. Routine (RR) and Compensatory Restraint (CR) were associated with a dietary pattern of low energy density but RR was positively associated with BMI while CR had a negative association, particularly in females. External Eating (EX) but not Emotional Eating (EE) was associated with a dietary pattern of high energy density. The three exercise constructs explained a large portion of the variance in physical activity. Self-Regulation (SR) and Personal Barriers (PB) mediated the association between outcome expectations (OE) and physical activity. The WRBQ explains patterns of dietary intake and PA participation in young adults. Weight control interventions should focus on decreasing RR, EX, and PB and increasing SR.

Indexing (details)


Subject
Nutrition;
Public health;
Weight control;
Behavioral psychology;
Questionnaires
Classification
0570: Nutrition
0573: Public health
Identifier / keyword
Health and environmental sciences; Energy expenditure; Energy intake; Exercise; Obesity
Title
Development and validation of a weight-related behaviors questionnaire
Author
Schembre, Susan M.
Number of pages
298
Publication year
2009
Degree date
2009
School code
0186
Source
DAI-B 70/07, Dissertation Abstracts International
Place of publication
Ann Arbor
Country of publication
United States
ISBN
9781109289053
Advisor
Greene, Geoffrey W.
University/institution
University of Rhode Island
University location
United States -- Rhode Island
Degree
Ph.D.
Source type
Dissertations & Theses
Language
English
Document type
Dissertation/Thesis
Dissertation/thesis number
3368004
ProQuest document ID
304986220
Copyright
Database copyright ProQuest LLC; ProQuest does not claim copyright in the individual underlying works.
Document URL
http://search.proquest.com/docview/304986220
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