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Updated: May 10, 2025
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Studying Food Reward and Motivation in Humans
Published on: March 19, 2014
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Predicting Weight Control Intentions: An Extended Model of Goal-Directed Behavior
Hyun Ju Yun1, Yumi Jang1, Jee Hye Lee1
1Department of Food Science and Nutrition, University of Ulsan, Ulsan 44610, Republic of Korea.
Summary
This study enhances the goal-directed behavior model by incorporating mental health to better understand adult weight control intentions. Findings show attitude, norms, and emotions predict desire, which influences weight control intention, with mental health playing a key role.
Area of Science:
- Behavioral Science
- Psychology
- Health Behavior
Background:
- Understanding adult intention to control body weight is crucial for public health.
- Existing models of goal-directed behavior (MGB) may not fully capture all influencing factors.
- The role of mental health in weight control behavior requires further investigation.
Purpose of the Study:
- To develop an extended model of goal-directed behavior (MGB) for explaining adult weight control intention.
- To integrate mental health as a key construct within the MGB framework for weight control.
- To examine the predictive relationships between attitude, subjective norms, anticipated emotions, desire, mental health, and weight control intention.
Main Methods:
- An online survey was administered to 239 undergraduate students.
- Participants responded to validated scales measuring attitude, subjective norms, anticipated emotions, desire, mental health, and intention.
- Structural equation modeling (SEM) was used to verify the proposed extended MGB.
Main Results:
- Attitude, subjective norms, and anticipated emotions significantly predicted desire for weight control.
- Desire was a significant predictor of intention to control weight.
- Mental health demonstrated a significant causal relationship with other variables in the extended MGB.
Conclusions:
- The extended MGB provides a more comprehensive explanation for weight control intention by including mental health.
- Affective factors, particularly desire and mental health, play a critical role in weight control behavior.
- The findings support the development of targeted weight control interventions that address psychological and affective components.
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