Validation and Quality Assessment in QUAN, QUAL, and Mixed Method Research

Document Type : علمی - پژوهشی

Author

Assistant professor at Faculty of Entrepreneurship in Tehran University

Abstract

The science world continuously experiences sharp changes in a high speed. In a way that in all areas such as research methods these changes are obvious. Nevertheless, if concepts such as validity and reliability in Methodology, at the time of Positivism have been used with distinct and general rules, in post positivism period in which much more attention have been paid to qualitative research; these principles have lost their Universality.in addition, in mixed method research (MMR) it became an inconsistency. Assessment about Fidelity/ Adequacy of research process and the final output in QUAN, QUAl and MMR requires quite different evaluation criteria. Qualitative researchers reject the criteria used by quantitative researchers when evaluating their work; those criteria include validity, reliability and generalizability, and qualitative researcher defined alternative criteria that is in accordance with research aims. On the other hand, the mixed researchers didn’t ratify both groups of criteria and established new standards and propose new criteria based on their own view. This article briefly explores the validity criteria from qualitative and quantitative researchers’ point of view and MMR.

Keywords