Validação de conteúdo de um instrumento para identificação de violência contra criança

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Abstract

Resumo Objetivo Elaborar e validar o conteúdo de um instrumento para identificação de violência contra criança. Métodos Estudo metodológico composto por duas etapas: a primeira foi a elaboração do instrumento, a partir de revisão da literatura; a segunda, de validação de conteúdo, mediante a avaliação do instrumento por 25 especialistas. Para análise, adotaram-se coeficiente Kappa ≥0,61 e índice de validade de conteúdo ≥0,75. Resultados Na primeira rodada, dos 62 itens, observou-se necessidade de reformulação do conteúdo de 23. Após as alterações sugeridas pelos especialistas, na segunda rodada, o instrumentou passou a possuir 50 itens. Destes, apenas um apresentou Kappa >0,61 (Kappa = 0,50). A insuficiência de concordância entre os especialistas ocasionou na exclusão dele, em uma terceira rodada. Conclusão O instrumento apresentou índice de validade de conteúdo satisfatório e pode ser utilizado para identificar os sinais de suspeita de violência e auxiliar os profissionais de saúde na assistência à criança.

Translated abstract

Abstract Objective To elaborate and validate the contents of an instrument for identifying violence against children. Methods Methodological study consisting of two stages: the first was the development of the instrument from the literature review; the second was content validation, with evaluation of the instrument by 25 experts. For analysis, were adopted Kappa coefficient ≥0.61, and content validity index ≥0.75. Results In the first round, of 62 items, it was necessary to reformulate the content of 23 items. After adjustments suggested by the experts, the instrumented had 50 items in the second round. Of these, only one had Kappa> 0.61 (Kappa = 0.50). The lack of agreement among experts resulted in the exclusion of this item in the third round. Conclusion The instrument showed satisfactory content validity index and can be used to identify signs of suspected violence and help health professionals in child care.

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Is the CVI an acceptable indicator of content validity? Appraisal and recommendations.

Denise Polit, Cheryl Beck, Steven Owen (2007)

Nurse researchers typically provide evidence of content validity for instruments by computing a content validity index (CVI), based on experts' ratings of item relevance. We compared the CVI to alternative indexes and concluded that the widely-used CVI has advantages with regard to ease of computation, understandability, focus on agreement of relevance rather than agreement per se, focus on consensus rather than consistency, and provision of both item and scale information. One weakness is its failure to adjust for chance agreement. We solved this by translating item-level CVIs (I-CVIs) into values of a modified kappa statistic. Our translation suggests that items with an I-CVI of .78 or higher for three or more experts could be considered evidence of good content validity.