Internal consistency and interrater reliability of the Brazilian version of Martín-Bayarre-Grau (MBG) adherence scale
ABSTRACT This paper aims to analyze the measurement equivalence aspects (internal consistency and interrater reliability) of a Brazilian version of Martín-Bayarre-Grau (MBG) adherence questionnaire as part of its cross-cultural adaptation. Item-total correlation and Cronbach's alpha coefficient...
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| Format: | Article |
| Language: | English |
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Universidade de São Paulo
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| Series: | Brazilian Journal of Pharmaceutical Sciences |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502016000400795&lng=en&tlng=en |
| _version_ | 1818772744710389760 |
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| author | Samara Ramalho Matta Thiago Botelho Azeredo Vera Lucia Luiza |
| author_facet | Samara Ramalho Matta Thiago Botelho Azeredo Vera Lucia Luiza |
| author_sort | Samara Ramalho Matta |
| collection | DOAJ |
| description | ABSTRACT This paper aims to analyze the measurement equivalence aspects (internal consistency and interrater reliability) of a Brazilian version of Martín-Bayarre-Grau (MBG) adherence questionnaire as part of its cross-cultural adaptation. Item-total correlation and Cronbach's alpha coefficients were used as internal consistency estimates. Stability was evaluated through test and retest comparison and expressed through intraclass correlation coefficient (ICC) and kappa with quadratic weighting. ICC for the overall scale was 0.81, indicating an "almost perfect" agreement. However, some cases of "poor" and "slight" agreements were found while analyzing individual items. The translated version of the MBG questionnaire showed good homogeneity (alpha 0.78), higher than cutoff points suggested in the literature. The scale has proved capable of measuring the level of adherence to treatment in hypertensive and/or diabetic patients in a reliable way. |
| first_indexed | 2024-12-18T10:14:13Z |
| format | Article |
| id | doaj.art-9f1bab24ddc84c959fcb60966726c66e |
| institution | Directory Open Access Journal |
| issn | 2175-9790 |
| language | English |
| last_indexed | 2024-12-18T10:14:13Z |
| publisher | Universidade de São Paulo |
| record_format | Article |
| series | Brazilian Journal of Pharmaceutical Sciences |
| spelling | doaj.art-9f1bab24ddc84c959fcb60966726c66e2022-12-21T21:11:21ZengUniversidade de São PauloBrazilian Journal of Pharmaceutical Sciences2175-979052479579910.1590/s1984-82502016000400025S1984-82502016000400795Internal consistency and interrater reliability of the Brazilian version of Martín-Bayarre-Grau (MBG) adherence scaleSamara Ramalho MattaThiago Botelho AzeredoVera Lucia LuizaABSTRACT This paper aims to analyze the measurement equivalence aspects (internal consistency and interrater reliability) of a Brazilian version of Martín-Bayarre-Grau (MBG) adherence questionnaire as part of its cross-cultural adaptation. Item-total correlation and Cronbach's alpha coefficients were used as internal consistency estimates. Stability was evaluated through test and retest comparison and expressed through intraclass correlation coefficient (ICC) and kappa with quadratic weighting. ICC for the overall scale was 0.81, indicating an "almost perfect" agreement. However, some cases of "poor" and "slight" agreements were found while analyzing individual items. The translated version of the MBG questionnaire showed good homogeneity (alpha 0.78), higher than cutoff points suggested in the literature. The scale has proved capable of measuring the level of adherence to treatment in hypertensive and/or diabetic patients in a reliable way.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502016000400795&lng=en&tlng=enAdherence to medicationReproducibility of resultsQuestionnaires/studyMartín-Bayarre-Grau/study/aspects |
| spellingShingle | Samara Ramalho Matta Thiago Botelho Azeredo Vera Lucia Luiza Internal consistency and interrater reliability of the Brazilian version of Martín-Bayarre-Grau (MBG) adherence scale Brazilian Journal of Pharmaceutical Sciences Adherence to medication Reproducibility of results Questionnaires/study Martín-Bayarre-Grau/study/aspects |
| title | Internal consistency and interrater reliability of the Brazilian version of Martín-Bayarre-Grau (MBG) adherence scale |
| title_full | Internal consistency and interrater reliability of the Brazilian version of Martín-Bayarre-Grau (MBG) adherence scale |
| title_fullStr | Internal consistency and interrater reliability of the Brazilian version of Martín-Bayarre-Grau (MBG) adherence scale |
| title_full_unstemmed | Internal consistency and interrater reliability of the Brazilian version of Martín-Bayarre-Grau (MBG) adherence scale |
| title_short | Internal consistency and interrater reliability of the Brazilian version of Martín-Bayarre-Grau (MBG) adherence scale |
| title_sort | internal consistency and interrater reliability of the brazilian version of martin bayarre grau mbg adherence scale |
| topic | Adherence to medication Reproducibility of results Questionnaires/study Martín-Bayarre-Grau/study/aspects |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502016000400795&lng=en&tlng=en |
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