The Four Types Of Validity In Nursing Practice

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Validity of Research Studies Invention and advancement in health sciences calls for constant update in nursing practice. To ensure application of evidence-based practice in clinical nursing, nurses are involved in critical- appraisal of the research articles or conduct researches on their own (Hoe & Hoare, 2015). The quality of any quantitative research study is determined through rigor of the study design and the validity of the results.
Types of Validity The quality of inferences made on a research study is called validity. The four types of validity that can affect the rigor of a quantitative study are statistical conclusion, internal, construct and external validity. According to Polit & Beck, (2017, p. 234), statistical conclusion validity relates to the empirical relationship between the cause and the effect whereas construct validity covers population, settings, outcomes and treatment. Internal validity refers that outcomes were caused by the independent variables rather than confounding factors and external validity is about the scope of generalization of the study (Polit & Beck, …show more content…

The ARRP group participants were younger, less sedated and had lesser severity of the disease and the researchers used these factors as covariates in the analyses. The growing awareness among nurses in recent years regarding the elevation of head of bed to prevent pneumonia and the physicians’ concerns on undesirable effects of pro-kinetic agents affected the study results. To eliminate history and selection bias on this study, researchers should have conducted the same study on two different hospitals such as one with no ARRP protocol in place and the second ICU with ARRP protocol in the same time frame. Eliminating GRV algorithm from the study would have yielded more reliable

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