Scale Overview
The Diet Self Efficacy Scale – DIET-SE was developed by Knäuper, B., Stich, C., & Tint, A. (2009). It is designed to measure Dieting Self-Efficacy. The scale is intended for use with Adults.
Scale Structure
This instrument consists of 11 items organized into 3 factors/subscales: High Caloric Food Temptations, Social and Internal Factors, Negative Emotional Events.
| Factor / Subscale |
Items |
N |
| High Caloric Food Temptations |
3,6,7,10 |
4 |
| Social and Internal Factors |
1,2,5,9 |
4 |
| Negative Emotional Events |
4,8,11 |
3 |
Response Format
Respondents rate each item using a custom response format.
Response anchors: 1 = Not at all confident, 2 = Slightly confident, 3 = Moderately confident, 4 = Very confident, 5 = Completely confident.
Scoring
Items are scored by subscale, with each subscale sum representing a distinct dimension.
Total scores range from 11 to 55. Interpretation guidelines:
- Low Dieting Self-Efficacy: 11 – 27
- Moderate Dieting Self-Efficacy: 28 – 43
- High Dieting Self-Efficacy: 44 – 55
Psychometric Properties
Internal Consistency: The scale has demonstrated good to excellent internal consistency with reported Cronbach’s alpha values of α = .82 – .87.
Administration
The scale is self-administered and typically takes approximately 5 minutes to complete. It can be administered individually or in group settings. No special training is required for administration.