Development and Preliminary Validation of a New Type 1 Diabetes Adjustment Scale (DAS-1)

Teresa Rivas; Mónica Carreira; Marta Domínguez-López; Maria Soledad Ruiz de Adana; María Teresa Anarte

doi:10.3389/fpsyg.2020.00533

Development and Preliminary Validation of a New Type 1 Diabetes Adjustment Scale (DAS-1)

Front Psychol. 2020 Apr 16:11:533. doi: 10.3389/fpsyg.2020.00533. eCollection 2020.

Authors

Teresa Rivas¹, Mónica Carreira², Marta Domínguez-López^{3

4}, Maria Soledad Ruiz de Adana^{3

4}, María Teresa Anarte²

Affiliations

¹ Department of Psychobiology and Behavioral Sciences Methodology, University of Málaga, Málaga, Spain.
² Department of Personality, Assessment and Psychological Treatment, Institute of Biomedical Research of Malaga (IBIMA), University of Málaga, Málaga, Spain.
³ Diabetes Unit, Department of Endocrinology and Nutrition, Institute of Biomedical Research of Málaga (IBIMA), Regional University Hospital of Málaga, University of Málaga, Málaga, Spain.
⁴ CIBERDEM, Madrid, Spain.

Abstract

Background: This study focuses on the development and validation of a new Type 1 Diabetes Adjustment Scale (DAS-1).

Method: A total of 204 participants aged 15-65 with type 1 diabetes completed the self-report measures of the DAS-1, which includes clinical and psychological variables.

Results: Robust confirmatory factor analysis detected a unidimensional structure of the item scores. The omega coefficient was 0.91 and test-retest reliability was 0.87. Classifying subjects as in a Positive or Negative mood state, ROC analysis yielded an optimal cut-off of 50 for the DAS-1 scores, with a clinical accuracy of AUC = 0.85. The DAS-1 demonstrated evidence of good reliability and acceptable construct validity.

Conclusion: The DAS-1 demonstrated good clinical utility, good sensitivity and adequate specificity. Clinical and theoretical implications of these results are discussed.

Keywords: adjustment scale; assessment; reliability; robust factor structure; type 1 diabetes; validity.