Methods of validating a questionnaire
Keywords: Questionnaire, reliability, social and health, validity How to cite this URL: Bolarinwa OA.
This is with a view to critically review current principles and methods of reliability and validity tests as they are applicable to questionnaire use in social and health researches.
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.
This is a review article which comprehensively explores and describes the validity and reliability of a research instrument (with special reference to questionnaire).
It further discusses various forms of validity and reliability tests with concise examples and finally explains various methods of analysing these tests with scientific principles guiding such analysis.