Bifactor SEM and MIRT Structure of a 12-Item Human Immunodeficiency Virus Stigma Scale in Peruvian Adults
Background: The stigma associated with human immunodeficiency virus (HIV) can lead to prejudice and discrimination against people who have been infected by this virus, consequently, it is important to have a validated tool to measure this phenomenon. However, there is only 1 national precedent that...
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SAGE Publications Inc.
2023
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| author | Ramos-Vera, Cristian Antony Basauri-Delgado, Miguel Diaz Peña, Misael Tinoco Alberto, Jose Perez Arroyo, Karen Herrera Mamani, Betsabel Sánchez-Villena, Andy Rick Saintila, Jacksaint |
| author_browse | Basauri-Delgado, Miguel Diaz Peña, Misael Herrera Mamani, Betsabel Perez Arroyo, Karen Ramos-Vera, Cristian Antony Saintila, Jacksaint Sánchez-Villena, Andy Rick Tinoco Alberto, Jose |
| author_facet | Ramos-Vera, Cristian Antony Basauri-Delgado, Miguel Diaz Peña, Misael Tinoco Alberto, Jose Perez Arroyo, Karen Herrera Mamani, Betsabel Sánchez-Villena, Andy Rick Saintila, Jacksaint |
| author_sort | Ramos-Vera, Cristian Antony |
| collection | Producción científica |
| description | Background: The stigma associated with human immunodeficiency virus (HIV) can lead to prejudice and discrimination against people who have been infected by this virus, consequently, it is important to have a validated tool to measure this phenomenon. However, there is only 1 national precedent that has validated the scores of this instrument in its 21-item version. Therefore, this study examined the bifactor structural equation method (SEM) and multidimensional item response theory (MIRT) structure of a 12-item human immunodeficiency virus stigma scale in Peruvian adults. Methods: We evaluated 342 patients (57.6% female and 42.45% male) diagnosed with HIV receiving highly active antiretroviral therapy (HAART) from a hospital located in East Lima, aged 18 to 45 years ( M = 31.4, SD = 9.79). A SEM was used to test 2 measurement models, a 4-factor correlated oblique model and a bifactor model due to high interfactor relationships. Results: Acceptable fit indices were identified for the oblique model (χ 2 /df = 1.26, SRMR = 0.044, RMSEA [90% CI] = 0.028 [0.000-0.047], CFI = 0.996, TLI = 0.994). In the same way, similar results were evident for the bifactor model (χ 2 /df = 1.14, SRMR = 0.039, RMSEA [90% CI] = 0.020 [0.000-0.044], CFI = 0.998, TLI = 0.997), however, in the latter it showed a greater explanation for the unidimensional model ( H = 0.87, PUC = 0.82, LCA = 0.70), which was also evidenced by the bifactor MIRT analysis. Conclusion: It is concluded that the 12-item HIV Stigma Scale meets the psychometric properties of internal structure and unifactorial reliability. |
| format | Article |
| id | oai:cris.upeu.edu.pe:20.500.15037/3046 |
| institution | UPeU |
| language | English |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | SAGE Publications Inc. |
| publisherStr | SAGE Publications Inc. |
| record_format | dspace |
| spelling | oai:cris.upeu.edu.pe:20.500.15037/30462026-10-30T17:09:29ZBifactor SEM and MIRT Structure of a 12-Item Human Immunodeficiency Virus Stigma Scale in Peruvian AdultsRamos-Vera, Cristian AntonyBasauri-Delgado, MiguelDiaz Peña, MisaelTinoco Alberto, JosePerez Arroyo, KarenHerrera Mamani, BetsabelSánchez-Villena, Andy RickSaintila, JacksaintHIVstigmaPeruPsychometric PropertiesFactorial InvarianceStructural EquationsBackground: The stigma associated with human immunodeficiency virus (HIV) can lead to prejudice and discrimination against people who have been infected by this virus, consequently, it is important to have a validated tool to measure this phenomenon. However, there is only 1 national precedent that has validated the scores of this instrument in its 21-item version. Therefore, this study examined the bifactor structural equation method (SEM) and multidimensional item response theory (MIRT) structure of a 12-item human immunodeficiency virus stigma scale in Peruvian adults. Methods: We evaluated 342 patients (57.6% female and 42.45% male) diagnosed with HIV receiving highly active antiretroviral therapy (HAART) from a hospital located in East Lima, aged 18 to 45 years ( M = 31.4, SD = 9.79). A SEM was used to test 2 measurement models, a 4-factor correlated oblique model and a bifactor model due to high interfactor relationships. Results: Acceptable fit indices were identified for the oblique model (χ 2 /df = 1.26, SRMR = 0.044, RMSEA [90% CI] = 0.028 [0.000-0.047], CFI = 0.996, TLI = 0.994). In the same way, similar results were evident for the bifactor model (χ 2 /df = 1.14, SRMR = 0.039, RMSEA [90% CI] = 0.020 [0.000-0.044], CFI = 0.998, TLI = 0.997), however, in the latter it showed a greater explanation for the unidimensional model ( H = 0.87, PUC = 0.82, LCA = 0.70), which was also evidenced by the bifactor MIRT analysis. Conclusion: It is concluded that the 12-item HIV Stigma Scale meets the psychometric properties of internal structure and unifactorial reliability.Article10.1177/215013192311975892-s2.0-85172252960https://hdl.handle.net/20.500.15037/3046enJournal of Primary Care & Community HealthJournal of Primary Care and Community Health2150-1319SAGE Publications Inc.2023-01-012026-06-27T02:35:31Z2026-06-27T02:35:31Z |
| spellingShingle | HIV stigma Peru Psychometric Properties Factorial Invariance Structural Equations Ramos-Vera, Cristian Antony Basauri-Delgado, Miguel Diaz Peña, Misael Tinoco Alberto, Jose Perez Arroyo, Karen Herrera Mamani, Betsabel Sánchez-Villena, Andy Rick Saintila, Jacksaint Bifactor SEM and MIRT Structure of a 12-Item Human Immunodeficiency Virus Stigma Scale in Peruvian Adults |
| title | Bifactor SEM and MIRT Structure of a 12-Item Human Immunodeficiency Virus Stigma Scale in Peruvian Adults |
| title_full | Bifactor SEM and MIRT Structure of a 12-Item Human Immunodeficiency Virus Stigma Scale in Peruvian Adults |
| title_fullStr | Bifactor SEM and MIRT Structure of a 12-Item Human Immunodeficiency Virus Stigma Scale in Peruvian Adults |
| title_full_unstemmed | Bifactor SEM and MIRT Structure of a 12-Item Human Immunodeficiency Virus Stigma Scale in Peruvian Adults |
| title_short | Bifactor SEM and MIRT Structure of a 12-Item Human Immunodeficiency Virus Stigma Scale in Peruvian Adults |
| title_sort | bifactor sem and mirt structure of a 12 item human immunodeficiency virus stigma scale in peruvian adults |
| topic | HIV stigma Peru Psychometric Properties Factorial Invariance Structural Equations |
| topic_facet | HIV stigma Peru Psychometric Properties Factorial Invariance Structural Equations |
| url | https://hdl.handle.net/20.500.15037/3046 |
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