Question

What factors must be assessed when critically appraising quantitative studies (e.g., validity, reliability, and applicability)? Which is the most important? Why?

Answer 1

In clinical practice critical appraisal is very important because it is necessary to appraise quantitative studies to asses whether the research methods and results are valid so that information can be produced.

Validity, reliability and applicability are important because validity is used to know whether the extent of the concept is measured accurately.There are three types of validity.They are construct validity, content validity, face validity.Reliability explains about the accuracy of research instrument.Applicability is the process which we can know whether we can fit the study findings into context and used by researchers and clinicians.

Validity is most important because it is used to know the measurement instrument so if it is not valid then they can not be reliable and in turn the results are not applied to practice.