HCA 699 What factors must be assessed when critically appraising quantitative studies (i.e., validity, reliability, and applicability)?
HCA 699 What factors must be assessed when critically appraising quantitative studies (i.e., validity, reliability, and applicability)?
What factors must be assessed when critically appraising quantitative studies (i.e., validity, reliability, and applicability)? Which is the most important? Why?
Critical appraisal of quantitative research studies is fundamental as regards their applicability to practice. The assertion receives support from Melnyk and Fineout-Overholt (2019) when they posit that healthcare practitioners should understand how to critically evaluate evidence so as to properly integrate it into practice. Whereas several aspects of quantitative studies can be used to assess them, validity, reliability, and applicability are the preferable parameters. Validity refers to the extent to which the results really measure what they are supposed to measure. Its assessment entails examining how well the results correspond to established theories and other measures of the same concept in a study. Reliability, on the other hand, refers to the reproducibility of a research when subjected to the same conditions. The assessment of reliability entails examining the consistency of results across time, across different observers, and across parts of the test itself. Applicability of the quantitative studies refers to the findings of the quantitative studies fitting into contexts external to the study conditions and they can receive utilization from researchers and clinicians.
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