Dieting Beliefs Scale

Abstract

The Dieting Beliefs Scale (DBS) is a specialized psychometric instrument developed to assess an individual’s beliefs regarding the determinants of weight management and dieting success. Designed by Stotland and Zuroff (1990), the scale operationalizes the concept of weight locus of control, distinguishing between internal beliefs (e.g., personal effort, restriction, exercise) and external beliefs (e.g., genetics, fate, environmental factors, need for professional help). The DBS provides researchers and clinicians with a tool to understand the cognitive framework individuals use when approaching weight loss, which is crucial for tailoring effective interventions for conditions like obesity and eating disorders.

Keywords

Dieting Beliefs Scale, Weight Locus of Control, Weight Management, Dieting, Psychological Assessment, Obesity, Beliefs, Internal Control, External Control

Authors

Stotland, S., Zuroff, D.C.

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Purpose

The primary purpose of the Dieting Beliefs Scale is to measure the extent to which individuals attribute control over their body weight to internal versus external factors. Traditional dieting measures often focus solely on behaviors or outcomes, whereas the DBS focuses on the underlying cognitive structure—the beliefs—that drive these behaviors. By quantifying these beliefs, the scale helps predict adherence to dietary regimens and potential success or failure in long-term weight maintenance.

The scale was specifically designed to be a more nuanced and context-specific measure than general Locus of Control scales, focusing entirely on the domain of weight and dieting. This specificity allows for greater precision in clinical and research settings where understanding motivational barriers and perceived self-efficacy in weight control is paramount.

Construct

The Dieting Beliefs Scale measures the construct of Weight Locus of Control. Locus of control, a concept derived from social learning theory, refers to how individuals perceive the cause of life events. In the context of weight, the DBS assesses attributional styles across several dimensions:

• Internal Control: Belief that weight is controllable through personal actions, such as restricting food intake, exercising, and exerting willpower. Items related to effort and personal responsibility fall under this dimension.
• External Control (Chance/Fate): Belief that weight is determined by factors outside of personal effort, such as luck, fate, or unavoidable environmental circumstances (e.g., pervasive availability of fattening food).
• External Control (Powerful Others/Genetics): Belief that weight is primarily determined by biological predispositions (genetics) or the influence and encouragement of external sources (e.g., professional help or social pressure).

The scale items are formulated to capture these disparate beliefs, allowing for a comprehensive profile of an individual’s perceived control over their body composition.

Validity

As published in the Journal of Personality Assessment, the Dieting Beliefs Scale demonstrated satisfactory initial validity. Construct validity was established by showing that the DBS factors aligned logically with theoretical concepts of weight attribution. For instance, internal control subscale scores typically correlate positively with self-reported dieting behaviors and self-efficacy measures related to weight loss.

Furthermore, convergent validity studies often show that the DBS is related to, yet distinct from, general measures of locus of control. Discriminant validity is supported by low correlations with measures of unrelated psychological constructs. The predictive validity of the DBS is crucial, as high scores on the internal control subscale are often associated with greater success in weight loss programs and better adherence to challenging dietary restrictions.

Reliability

The reliability of the Dieting Beliefs Scale is typically assessed through measures of internal consistency and test-retest stability. Initial psychometric studies conducted by the authors in 1990 reported acceptable levels of internal consistency, often measured using Cronbach’s alpha. High alpha coefficients indicate that the items within the different subscales (Internal vs. External) are coherently measuring the same underlying construct.

Test-retest reliability, which measures the stability of scores over time, is generally expected to be moderate to high, suggesting that an individual’s fundamental beliefs about weight control are relatively stable cognitive characteristics, though they may shift following significant life events or therapeutic interventions.

Factor Analysis

The original development of the DBS likely employed exploratory and potentially confirmatory factor analysis (depending on the methods available in 1990) to determine the underlying structure of the 16 items. Factor analysis typically confirms the multidimensional nature of the scale, distinguishing between the core components of weight locus of control.

Research using the DBS generally confirms the existence of distinct factors. While the specific factor structure may vary slightly across diverse populations, the primary factors typically identified are: 1) Personal Responsibility/Internal Control, 2) External/Genetic/Biological Determinism, and 3) External/Socio-Environmental/Luck Factors. This factor structure underscores the scale’s ability to differentiate various sources of external attribution beyond a simple internal-external dichotomy.

Instrument

Test Type: Self-report questionnaire designed to measure a specific psychological construct (Weight Locus of Control).

Format: 16 items utilizing a 6-point Likert scale.

Language Available: Original publication was in English. Translations may exist in subsequent research applications.

Population Group: General population, often utilized in clinical samples dealing with dieting, obesity, or disordered eating patterns.

Age Group: Adolescents and Adults (typically 18 years and older).

Population Details: The scale is applicable to individuals engaged in or contemplating weight management efforts, as their beliefs about control are highly relevant to adherence and outcome.

Test Methodology: Respondents indicate how descriptive each statement is of their beliefs, using a 6-point scale ranging from 1 (not at all descriptive of my beliefs) to 6 (very descriptive of my beliefs). Scoring involves summing responses, with specific items requiring reverse scoring to maintain consistency across the derived subscales.

Keywords

Psychometrics, Weight Attribution, Self-Efficacy, Eating Disorders, Internal Locus of Control, External Locus of Control, Dieting Success

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Authors

Author ORCID Identifier: Not provided in the source material.

Affiliation Email addresses: [email protected] (Contact for Ronald Okada, Professor of Psychology, York University, who may be a custodian or researcher utilizing the scale).

Correspondence Address: Ronald Okada, Professor of Psychology, Department of Psychology, Faculty of Health, York University, Toronto, Ontario, Canada M3J 1P

Permissions & Fee and Test Year

The Dieting Beliefs Scale was first introduced and published in 1990. Information regarding current usage permissions and associated fees is not provided in the original source material. Researchers or clinicians wishing to utilize the scale should contact the original authors (Stotland & Zuroff) or the listed contact person (Ronald Okada) for licensing, reproduction rights, and up-to-date usage agreements. As the scale is published in an academic journal, standard academic fair use guidelines may apply, but formal permission is generally recommended for clinical or commercial application.

Reference’s

• Stotland, S. & Zuroff, D.C. (1990). A new measure of weight locus of control: The Dieting Beliefs Scale. Journal of Personality Assessment, 54, 191-203.

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Items of the Dieting Beliefs Scale

Instructions: Please respond to the following statements by indicating how well each statement describes your beliefs. Place a number from 1 (not at all descriptive of my beliefs) to 6 (very descriptive of my beliefs) in the box to the right of each statement.

Scoring Note: Items marked with an asterisk (*) are reverse scored.

1. By restricting what one eats, one can lose weight.
2. When people gain weight, it is because of something they have done or not done.
3. * A thin body is largely a result of genetics.
4. * No matter how much effort one puts into dieting, one’s weight tends to stay about the same
5. * One’s weight is, to a great extent, controlled by fate.
6. * There is so much fattening food around that losing weight is almost impossible.
7. * Most people can only diet successfully when other people push them to do it.
8. having a slim and fit body has very little to do with luck.
9. People who are overweight lack the willpower necessary to control their weight.
10. Each of us directly is responsible for our weight.
11. Losing weight is simply a matter of wanting to do it and applying yourself.
12. * People who are more than a couple of pounds overweight need professional help to lose weight.
13. By increasing the amount one exercises, one can lose weight.
14. * Most people are at their present weight because that is the weight level that is natural for them.
15. Unsuccessful dieting is due to lack of effort.
16. * In order to lose weight, people must get a lot of encouragement from others.