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Psychometric properties of the Turkish version of the Patient Health Questionnaire-Somatic, Anxiety, and Depressive Symptoms.
Compr Psychiatry. 2012 Jul; 53(5):623-9.CP

Abstract

OBJECTIVE

In this study, we examined the psychometric properties of the Turkish version of the Patient Health Questionnaire-Somatic, Anxiety, and Depressive Symptoms (PHQ-SADS) developed by Kroenke, Spitzer, and Williams.

METHOD

This study sample consisted of 200 outpatients admitted to Erenköy Mental Health Training and Research Hospital, Erenköy Physiotherapy and Rehabilitation Hospital, and Kartal Training and Research Hospital and 240 graduate students in Karadeniz Technical University. Participants were administered the 90-item Symptoms Checklist (SCL-90R) and the 7-item Whiteley Index, along with the PHQ-SADS. A month later, the PHQ-SADS was readministered to 60 of the students. To investigate the internal consistency of the scale and its subscales, corrected item-total correlations were examined to establish the effect on the Cronbach coefficients and internal consistency of each item of the subscales. Test-retest correlations were also analyzed for reliability. Factorial structure was investigated using principal component analysis. The validity of distinguishing congruent and specific groups was also investigated for validity.

RESULTS

Total scores on the scale showed an adequate test-retest consistency (r = 0.54, 0.52, and 0.76, respectively). All items showed adequate correlations (r > 0.26) in the test-retest analysis. Cronbach α values were 0.86 (control), 0.93 (patient), and 0.92 (total) on the test of internal consistency. When the questions were analyzed individually, the item-total correlation for item 7 of the PHQ somatization subscale was found to be inadequate in the control group. Exploratory factorial analysis and varimax rotation results showed that the scale provided a 4-factor structure. In the validity analysis, a significant difference between the patient and the control group mean values was determined. The SCL-90R, 7-item Whiteley Index, and SCL-90R somatization subscales were found to be sufficiently related to the number of symptoms to establish criterion-related validity.

CONCLUSION

Findings with respect to internal consistency, test-retest consistency, item-total correlation, factorial structure, distinguishing validity for specific groups, and criterion-related validity for the PHQ-SADS show that the scale is acceptable in terms of validity and reliability for the Turkish population.

Authors+Show Affiliations

Erenköy Mental Research and Training Hospital, Istanbul, Turkey. yazicimedine@yahoo.comNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Validation Study

Language

eng

PubMed ID

22000476

Citation

Yazici Güleç, Medine, et al. "Psychometric Properties of the Turkish Version of the Patient Health Questionnaire-Somatic, Anxiety, and Depressive Symptoms." Comprehensive Psychiatry, vol. 53, no. 5, 2012, pp. 623-9.
Yazici Güleç M, Güleç H, Simşek G, et al. Psychometric properties of the Turkish version of the Patient Health Questionnaire-Somatic, Anxiety, and Depressive Symptoms. Compr Psychiatry. 2012;53(5):623-9.
Yazici Güleç, M., Güleç, H., Simşek, G., Turhan, M., & Aydin Sünbül, E. (2012). Psychometric properties of the Turkish version of the Patient Health Questionnaire-Somatic, Anxiety, and Depressive Symptoms. Comprehensive Psychiatry, 53(5), 623-9. https://doi.org/10.1016/j.comppsych.2011.08.002
Yazici Güleç M, et al. Psychometric Properties of the Turkish Version of the Patient Health Questionnaire-Somatic, Anxiety, and Depressive Symptoms. Compr Psychiatry. 2012;53(5):623-9. PubMed PMID: 22000476.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Psychometric properties of the Turkish version of the Patient Health Questionnaire-Somatic, Anxiety, and Depressive Symptoms. AU - Yazici Güleç,Medine, AU - Güleç,Hüseyin, AU - Simşek,Gülnihal, AU - Turhan,Musa, AU - Aydin Sünbül,Esra, Y1 - 2011/10/13/ PY - 2011/05/03/received PY - 2011/07/20/revised PY - 2011/08/04/accepted PY - 2011/10/18/entrez PY - 2011/10/18/pubmed PY - 2012/11/6/medline SP - 623 EP - 9 JF - Comprehensive psychiatry JO - Compr Psychiatry VL - 53 IS - 5 N2 - OBJECTIVE: In this study, we examined the psychometric properties of the Turkish version of the Patient Health Questionnaire-Somatic, Anxiety, and Depressive Symptoms (PHQ-SADS) developed by Kroenke, Spitzer, and Williams. METHOD: This study sample consisted of 200 outpatients admitted to Erenköy Mental Health Training and Research Hospital, Erenköy Physiotherapy and Rehabilitation Hospital, and Kartal Training and Research Hospital and 240 graduate students in Karadeniz Technical University. Participants were administered the 90-item Symptoms Checklist (SCL-90R) and the 7-item Whiteley Index, along with the PHQ-SADS. A month later, the PHQ-SADS was readministered to 60 of the students. To investigate the internal consistency of the scale and its subscales, corrected item-total correlations were examined to establish the effect on the Cronbach coefficients and internal consistency of each item of the subscales. Test-retest correlations were also analyzed for reliability. Factorial structure was investigated using principal component analysis. The validity of distinguishing congruent and specific groups was also investigated for validity. RESULTS: Total scores on the scale showed an adequate test-retest consistency (r = 0.54, 0.52, and 0.76, respectively). All items showed adequate correlations (r > 0.26) in the test-retest analysis. Cronbach α values were 0.86 (control), 0.93 (patient), and 0.92 (total) on the test of internal consistency. When the questions were analyzed individually, the item-total correlation for item 7 of the PHQ somatization subscale was found to be inadequate in the control group. Exploratory factorial analysis and varimax rotation results showed that the scale provided a 4-factor structure. In the validity analysis, a significant difference between the patient and the control group mean values was determined. The SCL-90R, 7-item Whiteley Index, and SCL-90R somatization subscales were found to be sufficiently related to the number of symptoms to establish criterion-related validity. CONCLUSION: Findings with respect to internal consistency, test-retest consistency, item-total correlation, factorial structure, distinguishing validity for specific groups, and criterion-related validity for the PHQ-SADS show that the scale is acceptable in terms of validity and reliability for the Turkish population. SN - 1532-8384 UR - https://www.unboundmedicine.com/medline/citation/22000476/Psychometric_properties_of_the_Turkish_version_of_the_Patient_Health_Questionnaire_Somatic_Anxiety_and_Depressive_Symptoms_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0010-440X(11)00160-X DB - PRIME DP - Unbound Medicine ER -