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. 2017 Oct 23;12(10):e0187009.
doi: 10.1371/journal.pone.0187009. eCollection 2017.

The Inventory of Depressive Symptomatology Self Report (IDS-SR): Psychometric properties of the Indonesian version

Retha Arjadi  1   2 , Maaike H Nauta  1 , Dharmayati B Utoyo  3 , Claudi L H Bockting  1   4
Affiliations

The Inventory of Depressive Symptomatology Self Report (IDS-SR): Psychometric properties of the Indonesian version

Retha Arjadi et al. PLoS One. .

Abstract

Background: Depression screening and examination in Indonesia are highly challenging due to the disproportionately low number of mental health professionals in comparison to the Indonesian population. Self-report questionnaires on depression are cost-effective and time-efficient. The current study investigates the psychometric properties of the Indonesian Inventory of Depressive Symptomatology Self Report (IDS-SR).

Methods: The participants were 904 Indonesians (aged 16-61; 50.2% female), recruited via an online survey using Qualtrics. Confirmatory factor analysis of the one-factor, three-factor, and four-factor model were explored. Convergent and divergent validity of the total score of the Indonesian IDS-SR and each factor were examined, as well as the Cronbach's Alpha reliability. In addition, an optimal cut-off score for the Indonesian IDS-SR was established using ROC curve analysis.

Results: The three-factor model of "cognitive/mood", "anxiety/arousal", and "sleep disturbance" was the best fit with the Indonesian IDS-SR data. Convergent and divergent validity were good. Cronbach's Alpha reliability was excellent for the total score, good for the factors "cognitive/mood" and "anxiety/arousal", but insufficient for the factor "sleep disturbance". The optimal cut-off score of the Indonesian IDS-SR was 14, with 87% sensitivity and 86% specificity.

Conclusions: As a multifactorial instrument to measure depression that has good validity and reliability, the Indonesian IDS-SR can be used to assess depressive symptoms for the purpose of research and clinical practice. The optimal cut-off score of the Indonesian IDS-SR is in accordance with the internationally used cut-off score.

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Conflict of interest statement

Competing Interests: The authors have declared that no competing interests exist.

Figures

Fig 1
Fig 1. Three-factor model with standardized factor loading of the Indonesian IDS-SR.
Fig 2
Fig 2. ROC curve of the Indonesian IDS-SR.
See this image and copyright information in PMC

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