Clinical Validation of the Nursing Outcome “Swallowing Status” in People with Stroke: Analysis According to the Classical and Item Response Theories

Abstract

AIMS AND OBJECTIVES

To validate clinically the nursing outcome “Swallowing status”.

METHODS

The adjustment of the nursing outcome was investigated according to the Classical and Item Response Theories. The models were compared regarding information loss, goodness-of-fit, and differential item functioning. Stability and internal consistency were examined.

RESULTS

The nursing outcome has the best fit in the generalized partial credit model with different discrimination parameters. Strong correlations among the scores of each indicator were observed. There was no differential item functioning of the outcome indicators. The scale presented high internal consistency (Cronbach's α = .954) and stability (and > .800).

CONCLUSIONS

This study presents a valid nursing outcome.

RELEVANCE TO CLINICAL PRACTICE

Most accurate monitoring of sensitivity to an intervention.

OBJETIVO

Validar clinicamente o resultado de enefermagem “Estado da Deglutição”.

MÉTODOS

O ajustamento do resultado foi investigado de acordo com as teorias Clássica e de Resposta ao Item. Os modelos foram comparados assumindo parâmetros de itens cruzados de igual discriminação. Investigaram-se as propriedades de bondade do ajuste, funcionamento diferencial dos itens, estabilidade e consistência interna.

RESULTADOS

O resultado se ajustou melhor a partir do Modelo de crédito parcial generalizado, o qual demonstrou unidimensionalidade do resultado e forte correlação entre os escores de cada indicador. Não houve funcionamento diferencial dos indicadores. A consistência interna para a escala global (Cronbach's α = .954) e a estabilidade (>.800) mantiveram-se elevadas.

CONCLUSÃO

O estudo apresenta um resultado de enfermagem válido.

RELEVÂNCIA PARA A PRÁTICA CLÍNICA

Maior acurácia para monitorar a sensibilidade da intervenção.

Keywords

nursing assessment psychometrics swallowing

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