S. M. Razavi, A. Amirfakhraei, Kobra Hagi Alizadeh
{"title":"创伤后症状量表波斯语版本的心理计量学评估:探索性和确认性因子分析","authors":"S. M. Razavi, A. Amirfakhraei, Kobra Hagi Alizadeh","doi":"10.5812/ijpbs-141873","DOIUrl":null,"url":null,"abstract":"Background: Iranian youth encounter numerous stressors, including accidents, suicide, and unemployment, heightening their risk for posttraumatic stress disorder (PTSD). It's crucial to assess, diagnose, and treat PTSD in this demographic. Objectives: This study aimed to evaluate the factor structure and validate the Post-Traumatic Symptom Scale (PTSS). Methods: A cross-sectional approach was employed for the validation of the PTSS in Bandar Abbas, 2022, with a sample of 901 young residents selected via random cluster sampling. Data were gathered using the PTSS and the Mississippi Scale for Posttraumatic Stress Disorder (MSPSS). Validation of the scale encompassed content validity, concurrent validity, and factor analysis. Reliability assessments included internal consistency, test-retest, and split-half reliability. The optimal cut-off point was identified through receiver operating characteristic (ROC) curve analysis and the Youden Index. Results: The PTSS demonstrated robust face and content validity, evidenced by impact factor (1.6 < impact factor < 3.6), content validity ratio (CVR = 0.68 to 0.91), and Content Validity Index (CVI = 0.70 to 0.94). The PTSS's concurrent validity with the MSPSS was positively strong (r = 0.64, P < 0.001). Factor analyses, both exploratory (EFA) and confirmatory (CFA), substantiated a four-factor model of the PTSS, accounting for 56.288% of the variance (19% for arousal and reactivity, 14% for negative alterations in cognitions and mood, 11% for avoidance, and 11% for intrusion). The scale's overall Cronbach's alpha was 0.87, with subscales ranging from 0.77 to 0.88. Test-retest reliability stood at 0.81 (P < 0.01), and split-half reliability at 0.81. The PTSS's optimal cut-off for PTSD diagnosis was 60, delivering a sensitivity of 0.70, specificity of 0.99, and Youden Index of 0.69. Conclusions: The PTSS proves to be a reliable and valid instrument for assessing posttraumatic stress symptoms among young Iranians, offering a useful resource for researchers and practitioners in the prevention and treatment of PTSD.","PeriodicalId":46644,"journal":{"name":"Iranian Journal of Psychiatry and Behavioral Sciences","volume":null,"pages":null},"PeriodicalIF":0.5000,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Psychometric Evaluation of the Persian Version of the Post-Traumatic Symptom Scale: Exploratory and Confirmatory Factor Analysis\",\"authors\":\"S. M. Razavi, A. Amirfakhraei, Kobra Hagi Alizadeh\",\"doi\":\"10.5812/ijpbs-141873\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Background: Iranian youth encounter numerous stressors, including accidents, suicide, and unemployment, heightening their risk for posttraumatic stress disorder (PTSD). It's crucial to assess, diagnose, and treat PTSD in this demographic. Objectives: This study aimed to evaluate the factor structure and validate the Post-Traumatic Symptom Scale (PTSS). Methods: A cross-sectional approach was employed for the validation of the PTSS in Bandar Abbas, 2022, with a sample of 901 young residents selected via random cluster sampling. Data were gathered using the PTSS and the Mississippi Scale for Posttraumatic Stress Disorder (MSPSS). Validation of the scale encompassed content validity, concurrent validity, and factor analysis. Reliability assessments included internal consistency, test-retest, and split-half reliability. The optimal cut-off point was identified through receiver operating characteristic (ROC) curve analysis and the Youden Index. Results: The PTSS demonstrated robust face and content validity, evidenced by impact factor (1.6 < impact factor < 3.6), content validity ratio (CVR = 0.68 to 0.91), and Content Validity Index (CVI = 0.70 to 0.94). The PTSS's concurrent validity with the MSPSS was positively strong (r = 0.64, P < 0.001). Factor analyses, both exploratory (EFA) and confirmatory (CFA), substantiated a four-factor model of the PTSS, accounting for 56.288% of the variance (19% for arousal and reactivity, 14% for negative alterations in cognitions and mood, 11% for avoidance, and 11% for intrusion). The scale's overall Cronbach's alpha was 0.87, with subscales ranging from 0.77 to 0.88. Test-retest reliability stood at 0.81 (P < 0.01), and split-half reliability at 0.81. The PTSS's optimal cut-off for PTSD diagnosis was 60, delivering a sensitivity of 0.70, specificity of 0.99, and Youden Index of 0.69. Conclusions: The PTSS proves to be a reliable and valid instrument for assessing posttraumatic stress symptoms among young Iranians, offering a useful resource for researchers and practitioners in the prevention and treatment of PTSD.\",\"PeriodicalId\":46644,\"journal\":{\"name\":\"Iranian Journal of Psychiatry and Behavioral Sciences\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.5000,\"publicationDate\":\"2024-04-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Iranian Journal of Psychiatry and Behavioral Sciences\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.5812/ijpbs-141873\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"PSYCHIATRY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Iranian Journal of Psychiatry and Behavioral Sciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5812/ijpbs-141873","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PSYCHIATRY","Score":null,"Total":0}
Psychometric Evaluation of the Persian Version of the Post-Traumatic Symptom Scale: Exploratory and Confirmatory Factor Analysis
Background: Iranian youth encounter numerous stressors, including accidents, suicide, and unemployment, heightening their risk for posttraumatic stress disorder (PTSD). It's crucial to assess, diagnose, and treat PTSD in this demographic. Objectives: This study aimed to evaluate the factor structure and validate the Post-Traumatic Symptom Scale (PTSS). Methods: A cross-sectional approach was employed for the validation of the PTSS in Bandar Abbas, 2022, with a sample of 901 young residents selected via random cluster sampling. Data were gathered using the PTSS and the Mississippi Scale for Posttraumatic Stress Disorder (MSPSS). Validation of the scale encompassed content validity, concurrent validity, and factor analysis. Reliability assessments included internal consistency, test-retest, and split-half reliability. The optimal cut-off point was identified through receiver operating characteristic (ROC) curve analysis and the Youden Index. Results: The PTSS demonstrated robust face and content validity, evidenced by impact factor (1.6 < impact factor < 3.6), content validity ratio (CVR = 0.68 to 0.91), and Content Validity Index (CVI = 0.70 to 0.94). The PTSS's concurrent validity with the MSPSS was positively strong (r = 0.64, P < 0.001). Factor analyses, both exploratory (EFA) and confirmatory (CFA), substantiated a four-factor model of the PTSS, accounting for 56.288% of the variance (19% for arousal and reactivity, 14% for negative alterations in cognitions and mood, 11% for avoidance, and 11% for intrusion). The scale's overall Cronbach's alpha was 0.87, with subscales ranging from 0.77 to 0.88. Test-retest reliability stood at 0.81 (P < 0.01), and split-half reliability at 0.81. The PTSS's optimal cut-off for PTSD diagnosis was 60, delivering a sensitivity of 0.70, specificity of 0.99, and Youden Index of 0.69. Conclusions: The PTSS proves to be a reliable and valid instrument for assessing posttraumatic stress symptoms among young Iranians, offering a useful resource for researchers and practitioners in the prevention and treatment of PTSD.
期刊介绍:
The Iranian Journal of Psychiatry and Behavioral Sciences (IJPBS) is an international quarterly peer-reviewed journal which is aimed at promoting communication among researchers worldwide and welcomes contributions from authors in all areas of psychiatry, psychology, and behavioral sciences. The journal publishes original contributions that have not previously been submitted for publication elsewhere. Manuscripts are received with the understanding that they are submitted solely to the IJPBS. Upon submission, they become the property of the Publisher and that the data in the manuscript have been reviewed by all authors, who agree to the analysis of the data and the conclusions reached in the manuscript. The Publisher reserves copyright and renewal on all published material and such material may not be reproduced without the written permission of the Publisher. Statements in articles are the responsibility of the authors.