Validating research instruments
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.He wants to ensure that the questions (in the questionnaire) fully represent the domain of attitudes towards the occupational hazard prevention.
proposed a S-CVI of ≥0.78 as significant level for inclusion of an item into the study.
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.
Validity expresses the degree to which a measurement measures what it purports to measure.
Face validity is often said to be very casual, soft and many researchers do not consider this as an active measure of validity.
For example, a researcher is interested in evaluating employees' attitudes towards a training program on hazard prevention within an organisation.