As in many other disciplines, research methodology in language program evaluation is classified into different paradigms by different scholars. No matter what classification each researcher follows, research in language program evaluation can be conducted according to two general approaches: positivistic/quantitative and naturalistic/qualitative. This article will attempt to review these two major paradigms by (i) giving the definition of each paradigm and presenting its logic of justification; (ii) outlining the major research methods employed in each paradigm; and (iv) critically evaluating each paradigm. .
