Methods of validating research


03-Nov-2019 12:11

One of the most common tasks often encountered in social science research is ascertaining the validity and reliability of a measurement tool. As simple as this may seems, it is often omitted or just mentioned passively in the research proposal or report.The researchers always wish to know if the measurement tool employed actually measures the intended research concept or construct (is it valid? ) or if the measurement tools used to quantify the variables provide stable or consistent responses (is it reliable? This has been adduced to the dearth of skills and knowledge of validity and reliability test analysis among social and health science researchers.Correspondence Address: Oladimeji Akeem Bolarinwa From the Department of Epidemiology and Community Health, University of Ilorin and University of Ilorin Teaching Hospital, Ilorin Nigeria Source of Support: None, Conflict of Interest: None The importance of measuring the accuracy and consistency of research instruments (especially questionnaires) known as validity and reliability, respectively, have been documented in several studies, but their measure is not commonly carried out among health and social science researchers in developing countries.This has been linked to the dearth of knowledge of these tests.Niger Postgrad Med J [serial online] 2015 [cited 2017 Dec 30];5-201. 2015/22/4/195/173959 These can be observational, self-report, interview and record review.The various measurements will ultimately require measurement tools through which the values will be captured.Several varieties have been described, including face validity, construct validity, content validity and criterion validity (which could be concurrent and predictive validity).

This form of validity exploits how well the idea of a theoretical construct is represented in an operational measure (questionnaire).From the author's personal observation among researchers in developing countries, most students and young researchers are not able to distinguish validity from reliability.



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