Recent research has shown that academic writing is not ‘author-evacuated’ but, rather, carries a representation of the writers’ identity. One way through which writers project their identity in academic writing is stance-taking toward propositions advanced in the text. Appropriate stance-taking has proved to be challenging for novice writers of Research Articles (RAs), especially those writing in a foreign language. To contribute to the literature on stance-taking, the present study compared the move-based use of evaluative resources in the introduction section of L1 (written by native English speakers) and L2 (written by Iranian, non-native writers) English RAs in the discipline of Applied Linguistics. To this end, 100 English Research Article Introductions (RAIs), 50 by L1 writers and 50 by L2 writers, were investigated as the corpus of the study. Categories of analysis were taken from Appraisal framework (Martine & White, 2005) and CARS model (Swales, 2004). The results revealed that the two groups of texts were not substantially different in the overall use of appraisal resources in the whole body of RAIs. However, more detailed analyses of the specific categories of appraisal in each of the rhetorical moves demonstrated that in some cases, especially in moves 1 and 3, L1 and L2 writers made different choices when taking a stance. The findings of this study can serve as a valuable source providing a practical and comprehensive understanding of the use of evaluative resources in RAIs for EAP researchers, teachers, and other professionals involved in the teaching of academic writing.