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.
In countries where other language versions are being developed, the primary tests must be undertaken and it would be advisable to carry out most or all of the optional tests.
This must be undertaken in the following ways: External companies/collaborators wishing to produce translations/adaptations of the ICIQ or its modules must gain prior permission from the ICIQ Development Group (contact Nikki Gardener).
These aspects are best assessed through interviews with patients and observations of patients completing draft versions of questionnaires.
At some stage, the researcher will also need to obtain the opinions of clinicians and other involved parties to check that clinically meaningful aspects are included in the questionnaire.
Principles and methods of validity and reliability testing of questionnaires used in social and health science researches.Below are the SUPR-Q items originally written in English and translated into French, along with the anchor labels to the response options for most of the items (strongly disagree to strongly agree). Back translate: To get a sense of how effective the translation was, have another independent person translate the translated questionnaire back into the original language.Here are the original French SUPR-Q items translated back into English.A recognised service that employs a standard translation/adaptation policy, such as that provided by the MEDTAP International and the Centre of Outcomes, Research, and Education (CORE) or the MAPI Research Institute, can be used.The final version must be approved by the ICIQ Development Group.One of the proposed survey strategies you may have run across is the suggestion to validate the questions in your survey.While many organizations may urge you to “add validation” as a quick survey tip, that’s about as far as their suggestion often goes.Step 1: Establish Face Validity This two-step process involves having your survey reviewed by two different parties.The first is a group familiar with your topic who can evaluate if your questions successfully capture your topic.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.