Psychometric evaluation of the WAST in the Collao Quechua: an integrative multi-method approach based on CFA, IRT, and network analysis
Abstract Background Violence against women is a problem with high prevalence in rural areas of Peru. Faced with this, the objective was to evaluate the psychometric properties of the Woman Abuse Screening Tool (WAST) in its Quechua version, Collao variant, under a multi-method approach. Method From...
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| Lenguaje: | inglés |
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2026
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| _version_ | 1881700521922789376 |
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| author | Oscar Mamani-Benito Andy Sánchez-Villena Zugeint Bejarano-Benites Milagros Yesenia Pacheco-Vizcarra Rosa Farfán-Solís Cristhian Cruz-Campos |
| author_browse | Andy Sánchez-Villena Cristhian Cruz-Campos Milagros Yesenia Pacheco-Vizcarra Oscar Mamani-Benito Rosa Farfán-Solís Zugeint Bejarano-Benites |
| author_facet | Oscar Mamani-Benito Andy Sánchez-Villena Zugeint Bejarano-Benites Milagros Yesenia Pacheco-Vizcarra Rosa Farfán-Solís Cristhian Cruz-Campos |
| author_sort | Oscar Mamani-Benito |
| collection | Producción científica |
| description | Abstract Background Violence against women is a problem with high prevalence in rural areas of Peru. Faced with this, the objective was to evaluate the psychometric properties of the Woman Abuse Screening Tool (WAST) in its Quechua version, Collao variant, under a multi-method approach. Method From a psychometric approach, an instrumental study was carried out in which 300 Quechua-speaking women from the Puno region participated and were administered the Collao Quechua version of the WAST, a scale of 8 items grouped into a single factor. The psychometric analysis included the application of Exploratory Graph Analysis (EGA) to examine dimensionality and structural stability, supplemented by a Confirmatory Factor Analysis (CFA) and a graded response model based on Item Response Theory (IRT). Reliability was estimated using the Omega coefficient and the test's information function. Result The EGA identified a highly stable one-dimensional structure (structural consistency = 1). The CFA showed an adequate fit (CFI = 0.985; TLI = 0.979; SRMR = 0.062), with high factor loadings (λ = 0.741-0.944) and high reliability (ω = 0.935). From the IRT, the model presented good global fit (CFI = 0.971; TLI = 0.935), adequate item discrimination, ordered thresholds, and absence of relevant local dependence. Tool accuracy was highest at medium to moderately high levels of the latent trait (θ ≈ 0 to 2), with high empirical reliability (rxx = 0.899). Conclusion The Collao Quechua version of the WAST presents robust psychometric properties, with high reliability and adequate functioning of its items. These findings support its validity as a screening instrument for the detection of violence in Quechua-speaking women. |
| format | Article |
| id | openalex:W7213533601 |
| institution | UPeU |
| language | English |
| publishDate | 2026 |
| publishDateRange | 2026 |
| publishDateSort | 2026 |
| record_format | dspace |
| spelling | openalex:W7213533601Psychometric evaluation of the WAST in the Collao Quechua: an integrative multi-method approach based on CFA, IRT, and network analysisOscar Mamani-BenitoAndy Sánchez-VillenaZugeint Bejarano-BenitesMilagros Yesenia Pacheco-VizcarraRosa Farfán-SolísCristhian Cruz-CamposWoman Abuse Screening Toolviolence against womendomestic violence screeningQuechuapsychometric validationexploratory graph analysisconfirmatory factor analysisgraded response modelitem response theorytest-retest reliabilityrural womenPuno regionIntimate Partner and Family ViolencePsychometric Methodologies and TestingHealth Education and ValidationAbstract Background Violence against women is a problem with high prevalence in rural areas of Peru. Faced with this, the objective was to evaluate the psychometric properties of the Woman Abuse Screening Tool (WAST) in its Quechua version, Collao variant, under a multi-method approach. Method From a psychometric approach, an instrumental study was carried out in which 300 Quechua-speaking women from the Puno region participated and were administered the Collao Quechua version of the WAST, a scale of 8 items grouped into a single factor. The psychometric analysis included the application of Exploratory Graph Analysis (EGA) to examine dimensionality and structural stability, supplemented by a Confirmatory Factor Analysis (CFA) and a graded response model based on Item Response Theory (IRT). Reliability was estimated using the Omega coefficient and the test's information function. Result The EGA identified a highly stable one-dimensional structure (structural consistency = 1). The CFA showed an adequate fit (CFI = 0.985; TLI = 0.979; SRMR = 0.062), with high factor loadings (λ = 0.741-0.944) and high reliability (ω = 0.935). From the IRT, the model presented good global fit (CFI = 0.971; TLI = 0.935), adequate item discrimination, ordered thresholds, and absence of relevant local dependence. Tool accuracy was highest at medium to moderately high levels of the latent trait (θ ≈ 0 to 2), with high empirical reliability (rxx = 0.899). Conclusion The Collao Quechua version of the WAST presents robust psychometric properties, with high reliability and adequate functioning of its items. These findings support its validity as a screening instrument for the detection of violence in Quechua-speaking women.Articlehttps://doi.org/10.1186/s40359-026-05574-3W7213533601enBMC Psychology2050-72832026-09-18 |
| spellingShingle | Woman Abuse Screening Tool violence against women domestic violence screening Quechua psychometric validation exploratory graph analysis confirmatory factor analysis graded response model item response theory test-retest reliability rural women Puno region Intimate Partner and Family Violence Psychometric Methodologies and Testing Health Education and Validation Oscar Mamani-Benito Andy Sánchez-Villena Zugeint Bejarano-Benites Milagros Yesenia Pacheco-Vizcarra Rosa Farfán-Solís Cristhian Cruz-Campos Psychometric evaluation of the WAST in the Collao Quechua: an integrative multi-method approach based on CFA, IRT, and network analysis |
| title | Psychometric evaluation of the WAST in the Collao Quechua: an integrative multi-method approach based on CFA, IRT, and network analysis |
| title_full | Psychometric evaluation of the WAST in the Collao Quechua: an integrative multi-method approach based on CFA, IRT, and network analysis |
| title_fullStr | Psychometric evaluation of the WAST in the Collao Quechua: an integrative multi-method approach based on CFA, IRT, and network analysis |
| title_full_unstemmed | Psychometric evaluation of the WAST in the Collao Quechua: an integrative multi-method approach based on CFA, IRT, and network analysis |
| title_short | Psychometric evaluation of the WAST in the Collao Quechua: an integrative multi-method approach based on CFA, IRT, and network analysis |
| title_sort | psychometric evaluation of the wast in the collao quechua an integrative multi method approach based on cfa irt and network analysis |
| topic | Woman Abuse Screening Tool violence against women domestic violence screening Quechua psychometric validation exploratory graph analysis confirmatory factor analysis graded response model item response theory test-retest reliability rural women Puno region Intimate Partner and Family Violence Psychometric Methodologies and Testing Health Education and Validation |
| topic_facet | Woman Abuse Screening Tool violence against women domestic violence screening Quechua psychometric validation exploratory graph analysis confirmatory factor analysis graded response model item response theory test-retest reliability rural women Puno region Intimate Partner and Family Violence Psychometric Methodologies and Testing Health Education and Validation |
| url | https://doi.org/10.1186/s40359-026-05574-3 |
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