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      Amostragem por saturação em pesquisas qualitativas em saúde: contribuições teóricas Translated title: Saturation sampling in qualitative health research: theoretical contributions

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          Abstract

          A transparência e a clareza dos relatórios de pesquisa, destacando a etapa de coleta de dados, são consideradas parâmetros importantes de avaliação do rigor científico dos estudos qualitativos. Este texto visa a refletir sobre o emprego do conceito metodológico de amostragem por saturação teórica, empregado freqüentemente nas descrições de pesquisas qualitativas nas diversas áreas do conhecimento, relevantemente, no campo da atenção à saúde. Discutimos e problematizamos os seguintes tópicos: definição de fechamento amostral por saturação teórica; dificuldades de aceitação e operacionalização de amostras intencionais (exemplificando-as), o tamanho adequado da amostra intencional, o significado de valorizar o que se repete ou as diferenças contidas nos relatos da amostra, os usos inadequados de expressões que empregam o termo saturação e, finalmente, possíveis metáforas para compreender o conceito.

          Translated abstract

          The transparency and clarity of research reports, emphasizing the data collection stage, are considered important parameters for evaluating the scientific rigor of qualitative studies. The current paper aims to analyze the use of saturation sampling as a methodological concept, frequently employed in descriptions of qualitative studies in various areas of knowledge, particularly in the field of health care. We discuss and confront the following topics: definition of sampling closure by theoretical saturation; difficulties in the acceptance and operationalization of intentional samples (with examples), adequate size of the intentional sample, the significance of valuing what is repeated or the differences contained in the sample reports, inadequate uses of expressions containing the term saturation, and finally possible metaphors for understanding the concept.

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          O desafio do conhecimento:: pesquisa qualitativa em saúde.

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            Qualitative evaluation and research methods

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              Tratado da metodologia da pesquisa clínico qualitativa

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                csp
                Cadernos de Saúde Pública
                Cad. Saúde Pública
                Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz (Rio de Janeiro )
                1678-4464
                January 2008
                : 24
                : 1
                : 17-27
                Affiliations
                [1 ] Universidade Federal de São Carlos Brazil
                [2 ] Universidade Federal de Minas Gerais Brasil
                [3 ] Universidade Estadual de Campinas Brasil
                Article
                S0102-311X2008000100003
                10.1590/S0102-311X2008000100003
                18209831
                5410a3f0-0caa-47ea-ad4e-94a3ef7003f2

                http://creativecommons.org/licenses/by/4.0/

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                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielosp.org/scielo.php?script=sci_serial&pid=0102-311X&lng=en
                Categories
                Health Policy & Services

                Public health
                Sampling Studies,Qualitative Research,Methodology,Amostragem,Pesquisa Qualitativa,Metodologia

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