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Rasch model of the GAIN substance problem scale among inpatient and outpatient clients in the city of São Paulo, Brazil
INTRODUCTION: This study used the Rasch model to evaluate the psychometric properties of the Portuguese version of the Substance Problem Scale (SPS) of the “Global Appraisal of Individual Needs - Initial” for use in Brazil. The SPS measures alcohol and drug problem severity within a DSM-IV-TR framew...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5845976/ https://www.ncbi.nlm.nih.gov/pubmed/29531994 http://dx.doi.org/10.1016/j.abrep.2015.08.001 |
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author | Garcia Claro, Heloísa Ferreira de Oliveira, Márcia Aparecida Almeida Lopes Fernandes, Ivan Filipe de Titus, Janet C. Ribeiro Tarifa, Rosana Fernandes Rojas, Thais Hayasi Pinho, Paula |
author_facet | Garcia Claro, Heloísa Ferreira de Oliveira, Márcia Aparecida Almeida Lopes Fernandes, Ivan Filipe de Titus, Janet C. Ribeiro Tarifa, Rosana Fernandes Rojas, Thais Hayasi Pinho, Paula |
author_sort | Garcia Claro, Heloísa |
collection | PubMed |
description | INTRODUCTION: This study used the Rasch model to evaluate the psychometric properties of the Portuguese version of the Substance Problem Scale (SPS) of the “Global Appraisal of Individual Needs - Initial” for use in Brazil. The SPS measures alcohol and drug problem severity within a DSM-IV-TR framework. The goal of the Rasch analysis was to assess scale dimensionality, item severity, and differential item functioning (DIF). METHODS: Data was collected from 40 inpatients and 70 outpatients in São Paulo, Brazil. The Rasch model fit and DIF by gender and level of care were examined. RESULTS: The SPS fit the Rasch model, with no items distorting the measure. Only three of the sixteen items performed differently between men and women and three performed differently by level of care. CONCLUSIONS: The results were compatible with those from Rasch analyses of the American English and Canadian English versions of the scale. The Portuguese version of the SPS is, thus, valid for use in Brazil, both with men and women in inpatient and outpatient programs. |
format | Online Article Text |
id | pubmed-5845976 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-58459762018-03-12 Rasch model of the GAIN substance problem scale among inpatient and outpatient clients in the city of São Paulo, Brazil Garcia Claro, Heloísa Ferreira de Oliveira, Márcia Aparecida Almeida Lopes Fernandes, Ivan Filipe de Titus, Janet C. Ribeiro Tarifa, Rosana Fernandes Rojas, Thais Hayasi Pinho, Paula Addict Behav Rep Article INTRODUCTION: This study used the Rasch model to evaluate the psychometric properties of the Portuguese version of the Substance Problem Scale (SPS) of the “Global Appraisal of Individual Needs - Initial” for use in Brazil. The SPS measures alcohol and drug problem severity within a DSM-IV-TR framework. The goal of the Rasch analysis was to assess scale dimensionality, item severity, and differential item functioning (DIF). METHODS: Data was collected from 40 inpatients and 70 outpatients in São Paulo, Brazil. The Rasch model fit and DIF by gender and level of care were examined. RESULTS: The SPS fit the Rasch model, with no items distorting the measure. Only three of the sixteen items performed differently between men and women and three performed differently by level of care. CONCLUSIONS: The results were compatible with those from Rasch analyses of the American English and Canadian English versions of the scale. The Portuguese version of the SPS is, thus, valid for use in Brazil, both with men and women in inpatient and outpatient programs. Elsevier 2015-08-28 /pmc/articles/PMC5845976/ /pubmed/29531994 http://dx.doi.org/10.1016/j.abrep.2015.08.001 Text en © 2015 The Authors http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Article Garcia Claro, Heloísa Ferreira de Oliveira, Márcia Aparecida Almeida Lopes Fernandes, Ivan Filipe de Titus, Janet C. Ribeiro Tarifa, Rosana Fernandes Rojas, Thais Hayasi Pinho, Paula Rasch model of the GAIN substance problem scale among inpatient and outpatient clients in the city of São Paulo, Brazil |
title | Rasch model of the GAIN substance problem scale among inpatient and outpatient clients in the city of São Paulo, Brazil |
title_full | Rasch model of the GAIN substance problem scale among inpatient and outpatient clients in the city of São Paulo, Brazil |
title_fullStr | Rasch model of the GAIN substance problem scale among inpatient and outpatient clients in the city of São Paulo, Brazil |
title_full_unstemmed | Rasch model of the GAIN substance problem scale among inpatient and outpatient clients in the city of São Paulo, Brazil |
title_short | Rasch model of the GAIN substance problem scale among inpatient and outpatient clients in the city of São Paulo, Brazil |
title_sort | rasch model of the gain substance problem scale among inpatient and outpatient clients in the city of são paulo, brazil |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5845976/ https://www.ncbi.nlm.nih.gov/pubmed/29531994 http://dx.doi.org/10.1016/j.abrep.2015.08.001 |
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