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      Validade de conteúdo nos processos de construção e adaptação de instrumentos de medidas Translated title: Content validity in the development and adaptation processes of measurement instruments

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          Abstract

          Este estudo teve por objetivo realizar uma revisão sobre validade de conteúdo, fase importante nos processos de construção e adaptação de instrumentos de medida. Foi realizada pesquisa bibliográfica definida como integrativa, por meio de pesquisa a bases de dados nacionais e internacionais. Iniciou-se a descrição das bases conceituais e os métodos de medidas usados em validade de conteúdo, com ênfase na área da saúde. Verificou-se que existem controvérsias na literatura sobre a terminologia e o conceito da validade de conteúdo. Foram descritos os procedimentos recomendados para realizar a validade de conteúdo durante os processos de construção e de adaptação de instrumentos, particularmente a avaliação por juízes, o que pode envolver procedimentos qualitativos e quantitativos. Descreveu-se número, seleção e qualificação desses juízes. Os diferentes métodos para quantificar o grau de concordância entre os especialistas foram analisados, principalmente o Índice de Validade de Conteúdo (IVC). Este estudo descreveu aspectos do processo de realização da validade de conteúdo, um dos procedimentos a serem considerados por pesquisadores e profissionais da área de saúde preocupados em utilizarem medidas e instrumentos confiáveis e apropriados para determinada população.

          Translated abstract

          This study sought to conduct a review of content validity, which is an important phase of processes of construction and adaptation of measurement instruments. Research of comprehensive literature was conducted by means of a review of national and international databases. Initially, a description of the conceptual basis and the measurement methods used in content validity was made, with emphasis on its application in the healthcare area. It was seen that controversy exists in the literature on the terminology and concept of content validity. The recommended procedures used to check content validity during the construction and adaptation processes of instruments were described, especially the judges' assessment, which can involve qualitative and quantitative procedures. The number, selection and qualification of these judges were also described. The different methods used to quantify the level of agreement among the experts were verified, mainly the Content Validity Index (CVI). This study described aspects of the content validity process, one of the procedures to be considered by healthcare researchers and professionals who are interested in using reliable and appropriate measurements and instruments scales for given population groups.

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          Most cited references70

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          Determination and quantification of content validity.

          M Lynn (1986)
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            Instrument review: Getting the most from a panel of experts

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              A psychometric toolbox for testing validity and reliability.

              To review the concepts of reliability and validity, provide examples of how the concepts have been used in nursing research, provide guidance for improving the psychometric soundness of instruments, and report suggestions from editors of nursing journals for incorporating psychometric data into manuscripts. CINAHL, MEDLINE, and PsycINFO databases were searched using key words: validity, reliability, and psychometrics. Nursing research articles were eligible for inclusion if they were published in the last 5 years, quantitative methods were used, and statistical evidence of psychometric properties were reported. Reports of strong psychometric properties of instruments were identified as well as those with little supporting evidence of psychometric soundness. Reports frequently indicated content validity but sometimes the studies had fewer than five experts for review. Criterion validity was rarely reported and errors in the measurement of the criterion were identified. Construct validity remains underreported. Most reports indicated internal consistency reliability (alpha) but few reports included reliability testing for stability. When retest reliability was asserted, time intervals and correlations were frequently not included. Planning for psychometric testing through design and reducing nonrandom error in measurement will add to the reliability and validity of instruments and increase the strength of study findings. Underreporting of validity might occur because of small sample size, poor design, or lack of resources. Lack of information on psychometric properties and misapplication of psychometric testing is common in the literature.

                Author and article information

                Journal
                csc
                Ciência & Saúde Coletiva
                Ciênc. saúde coletiva
                ABRASCO - Associação Brasileira de Saúde Coletiva (Rio de Janeiro, RJ, Brazil )
                1413-8123
                1678-4561
                July 2011
                : 16
                : 7
                : 3061-3068
                Affiliations
                [01] Campinas São Paulo orgnameUniversidade Estadual de Campinas orgdiv1Faculdade de Ciências Médicas orgdiv2Departamento de Enfermagem Brazil nesalex@ 123456fcm.unicamp.br
                Article
                S1413-81232011000800006 S1413-8123(11)01600706
                10.1590/S1413-81232011000800006
                21808894
                c993da21-e077-4386-9dc4-e358cfaab262

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 06 July 2009
                : 29 November 2009
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 46, Pages: 8
                Product

                SciELO Public Health

                Self URI: Texto completo somente em PDF (PT)
                Categories
                Artigos

                Validity of tests,Validation studies,Validade dos testes,Questionnaires,Reproducibility of results,Methods,Estudos de validação,Questionários,Reprodutibilidade dos testes,Métodos

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