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Development and Preliminary Validation of a New Type 1 Diabetes Adjustment Scale (DAS-1)
Teresa Rivas1, Mónica Carreira2, Marta Domínguez-López3,4
1Department of Psychobiology and Behavioral Sciences Methodology, University of Málaga, Málaga, Spain.
Frontiers in Psychology
|May 7, 2020
Summary
The new Type 1 Diabetes Adjustment Scale (DAS-1) shows strong reliability and validity for assessing adjustment in individuals with type 1 diabetes. This scale offers good clinical utility for mood state classification.
Area of Science:
- Psychological assessment
- Endocrinology
- Psychometrics
Background:
- Type 1 Diabetes Adjustment Scale (DAS-1) development and validation.
- Assessment of clinical and psychological variables in type 1 diabetes.
Purpose of the Study:
- To develop and validate the Type 1 Diabetes Adjustment Scale (DAS-1).
- To evaluate the reliability and construct validity of the DAS-1.
- To assess the clinical utility of the DAS-1 for mood state classification.
Main Methods:
- 204 participants (aged 15-65) with type 1 diabetes completed self-report measures.
- Confirmatory factor analysis (CFA) was used to determine the scale's structure.
- Reliability (omega, test-retest) and ROC analysis were performed.
Main Results:
- The DAS-1 exhibited a robust unidimensional structure.
- High reliability was found (omega = 0.91, test-retest = 0.87).
- ROC analysis showed good accuracy (AUC = 0.85) for mood state classification with a cut-off of 50.
Conclusions:
- The DAS-1 demonstrates good reliability and acceptable construct validity.
- The scale possesses good clinical utility, sensitivity, and adequate specificity.
- Results support the DAS-1's application in clinical and theoretical contexts for type 1 diabetes adjustment.
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