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...
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| Format: | Article |
| Language: | English |
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Elsevier
2015-12-01
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| Series: | Addictive Behaviors Reports |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352853215000334 |
| _version_ | 1819083475938967552 |
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| author | Heloísa Garcia Claro Márcia Aparecida Ferreira de Oliveira Ivan Filipe de Almeida Lopes Fernandes Janet C. Titus Rosana Ribeiro Tarifa Thais Fernandes Rojas Paula Hayasi Pinho |
| author_facet | Heloísa Garcia Claro Márcia Aparecida Ferreira de Oliveira Ivan Filipe de Almeida Lopes Fernandes Janet C. Titus Rosana Ribeiro Tarifa Thais Fernandes Rojas Paula Hayasi Pinho |
| author_sort | Heloísa Garcia Claro |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-12-21T20:33:10Z |
| format | Article |
| id | doaj.art-ea71131a0b6a40158f609596b1a5ee52 |
| institution | Directory Open Access Journal |
| issn | 2352-8532 |
| language | English |
| last_indexed | 2024-12-21T20:33:10Z |
| publishDate | 2015-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Addictive Behaviors Reports |
| spelling | doaj.art-ea71131a0b6a40158f609596b1a5ee522022-12-21T18:51:10ZengElsevierAddictive Behaviors Reports2352-85322015-12-012C556010.1016/j.abrep.2015.08.001Rasch model of the GAIN substance problem scale among inpatient and outpatient clients in the city of São Paulo, BrazilHeloísa Garcia Claro0Márcia Aparecida Ferreira de Oliveira1Ivan Filipe de Almeida Lopes Fernandes2Janet C. Titus3Rosana Ribeiro Tarifa4Thais Fernandes Rojas5Paula Hayasi Pinho6University of São Paulo, School of Nursing, EEUSP, Av. Dr. Enéas de Carvalho Aguiar, 419, 05403-000 São Paulo, BrazilSchool of Nursing, University of São Paulo, BrazilUniversity of São Paulo, School of Nursing, EEUSP, BrazilChestnut Health Systems, IL, USASchool of Nursing, University of São Paulo, BrazilSchool of Nursing, University of São Paulo, BrazilSchool of Nursing, University of São Paulo, BrazilIntroduction: 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.http://www.sciencedirect.com/science/article/pii/S2352853215000334Validation studiesAlcohol-related disordersSubstance-related disorders |
| spellingShingle | Heloísa Garcia Claro Márcia Aparecida Ferreira de Oliveira Ivan Filipe de Almeida Lopes Fernandes Janet C. Titus Rosana Ribeiro Tarifa Thais Fernandes Rojas Paula Hayasi Pinho Rasch model of the GAIN substance problem scale among inpatient and outpatient clients in the city of São Paulo, Brazil Addictive Behaviors Reports Validation studies Alcohol-related disorders Substance-related disorders |
| 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 sao paulo brazil |
| topic | Validation studies Alcohol-related disorders Substance-related disorders |
| url | http://www.sciencedirect.com/science/article/pii/S2352853215000334 |
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