1,921 research outputs found
A multivariate hierarchical Bayesian approach to measuring agreement in repeated measurement method comparison studies
Background. Assessing agreement in method comparison studies depends on two fundamentally important components; validity (the between method agreement) and reproducibility (the within method agreement). The Bland-Altman limits of agreement technique is one of the favoured approaches in medical literature for assessing between method validity. However, few researchers have adopted this approach for the assessment of both validity and reproducibility. This may be partly due to a lack of a flexible, easily implemented and readily available statistical machinery to analyse repeated measurement method comparison data. Methods. Adopting the Bland-Altman framework, but using Bayesian methods, we present this statistical machinery. Two multivariate hierarchical Bayesian models are advocated, one which assumes that the underlying values for subjects remain static (exchangeable replicates) and one which assumes that the underlying values can change between repeated measurements (non-exchangeable replicates). Results. We illustrate the salient advantages of these models using two separate datasets that have been previously analysed and presented; (i) assuming static underlying values analysed using both multivariate hierarchical Bayesian models, and (ii) assuming each subject's underlying value is continually changing quantity and analysed using the non-exchangeable replicate multivariate hierarchical Bayesian model. Conclusion. These easily implemented models allow for full parameter uncertainty, simultaneous method comparison, handle unbalanced or missing data, and provide estimates and credible regions for all the parameters of interest. Computer code for the analyses in also presented, provided in the freely available and currently cost free software package WinBUGS
The view of teachers on bullying and implications for nursing
Objetivo: Compreender o bullying escolar,
na perspectiva dos professores, e refletir
sobre as possíveis ações da área da saúde
em seu enfrentamento. Para tanto, tomaram-
se por base as diretrizes do Programa
Saúde na Escola, dos Ministérios da Saúde
e da Educação. Método: Estudo de caso
qualitativo, realizado com professores de
uma escola pública de Minas Gerais. Foram
utilizados grupos focais na coleta de dados
e o material empírico foi decodificado
a partir de técnica de análise temática de
conteúdo, resultando em uma categoria
analítica: concepções e experiências de
professores diante do bullying. Resultados:
Foram identificadas percepções pontuais
sobre o fenômeno e utilização de recursos
de intervenção pouco eficazes. No plano
interpretativo, problematizaram-se as contribuições
da saúde e da enfermagem no
redimensionamento das intervenções e no
processo de formação continuada dos professores.
Conclusão: Os resultados apontam
para a construção de práticas intersetoriais
para o enfrentamento do bullying.To understand school bullying from the perspective of teachers and reflect about the possible actions of the health area when coping with it. The guidelines of the School Health Program of the Ministries of Health and Education were used to reach that purpose. Method: A qualitative study carried out with teachers of a public school in Minas Gerais. Focus groups were used to collect data and the empirical material was decoded from thematic analysis of content, resulting in an analytical category: conceptions and experiences of teachers on bullying. Results: Specific perceptions about the phenomenon and the use of ineffective intervention resources were identified. In the interpretive plan were problematized the health and nursing contributions with resizing the interventions and the continuing training process of teachers. Conclusion: The results point to the construction of intersectoral practices forcoping with bullying.Objetivo: Comprender el bullying escolar
desde la perspectiva de los profesores,
y reflexionar sobre las posibles acciones
del área de salud en su enfrentamiento.
Tomando como base los lineamientos del
Programa de Salud Escolar, de los Ministerios
de Salud y de Educación. Método:
Estudio de caso cualitativo realizado con
los profesores de una escuela pública en
Minas Gerais. Para la recolección de datos
se utilizaron grupos focales y el material
empírico fue decodificado a partir de la
técnica de análisis temático de contenido,
dando lugar a una categoría analítica: concepciones
y experiencias de los profesores
sobre el acoso escolar. Resultados: Se identificaron
percepciones específicas sobre el
fenómeno y la utilización de recursos ineficaces
de intervención. En el plano interpretativo,
se problematizaron las contribuciones
de la salud y de la enfermería en el
redimensionamiento de las intervenciones
y en el proceso de formación continua de
los profesores. Conclusión: Los resultados
apuntan a la construcción de prácticas intersectoriales
para el enfrentamiento del
bullying.CIEC - Centro de Investigação em Estudos da Criança, UM (UI 317 da FCT
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