The Psychometric Properties of the Malay Version of the Demoralisation Scale (DS-M)

Chin HL, Ng CG, Aili H

Abstract


Objective: The objective of this study was study the psychometric properties the Malay Version of the Demoralisation Scale (DS-M) in cancer patients.

Method: This was a cross sectional study where 178 subjects were recruited from Universiti Malaya Medical Centre (UMMC). The subjects answered both English and Malay versions of the Demoralisation Scales, Centre for Epidemiologic Studies Depression (CESD) Scale, Distress Thermometer and Positive Emotion Rating Scale (PERS). Principal component factor analysis was conducted. The internal consistency, convergent, divergent and discriminant validity were examined.

Results: The mean score for the DS-M of the subjects was 18.79 + 15.30 where 37.6% of the cancer patients scored > 23. The principal component analysis of DS-M yielded four-factor structures. The Cronbach’s alpha for the scale was 0.95, and the subscales ranged between 0.81-0.92. The Spearman’s correlation showed a good convergent validity between DS-M and CESD (r = 0.78, p < 0.01) and Distress Thermometer (r = 0.64, p < 0.01); and divergent validity between DS-M and PERS (r = -.69, p < 0.01). The AUC was 0.92 (SE: 0.02, p < 0.01, 95% CI 0.88- 0.97).

Conclusion: The DS-M has good psychometric properties as a screening tool for demoralisation in patients with cancer in Malaysia.

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Keywords


Demoralisation; Malay; Depression; Cancer; Distress

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