Attitudinal adverbials play a key role in conveying the author's perspective in scholarly discourse. They serve to articulate their emotions, judgements, and evaluations. This study presents findings of a contrastive corpus-based study conducted to examine the use of attitude adverbials by both native English authors and non-native Kurdish writers. The main objective of the study is to find out the types and frequency of attitude markers in academic writing of those two groups of writers. Following the Contrastive Interlanguage Analysis (CIA), the research compares Kurdish non-native writers' language with native authors', aiming to identify nativeness features. It involves three phases: analyzing the non-native corpus, the native corpus, and comparing the use of attitude adverbials by both groups. Data for quantitative analysis was taken from two corpora : the Non-Native speaker corpus (KNNSC) and a subcorpus of academic discourse by English native speakers complied from CAEC (Cambridge Academic English Corpus ) as a reference corpus. The analysis in both corpora was carried out using the Sketch Engine (SkE) software. In terms of how frequently attitude markers were employed in the academic texts under analysis, the results indicate that native authors utilized attitude markers more frequently than the Kurdish academic writers. This tendency can be related to cultural norms of writing , personal communication styles, education, and exposure to diverse cultural contexts.