booster

Metadiscourse is a set of linguistic ties used to communicate attitudes and denote the grammatical attributes of a text. The present study was conducted to inspect using hedging, boostering, and self-mentioning metadiscourse markers in the well-known Persian and English psychology books. Based on the chosen corpora of the study, this inquiry purposed to realize what the general preferences are in the use of hedging, boostering, and self-mentioning metadiscourse markers in Persian and English psychology books. The corpora of four psychology books, two by Persian- speaking psychologists and two by English-speaking psychologists, were chosen and analyzed based on Hyland’s (2005) model of metadiscourse. The data obtained and collected from the chosen corpora were analyzed by Ant Conc 3. 5 . 7 and SPSS statistical software. By analyzing the corpora of the study quantitatively, it is resulted that Persian-speaking psychologists used more metadiscourse markers than that of English-speaking psychologists in their books. Secondly, it is detected that Persian-speaking psychologists used fewer hedging metadiscourse markers in their books than that of their English-speaking counterparts. Thirdly, it is found that Persian-speaking psychologists used more boostering metadiscourse markers in their books than that of their English-speaking counterparts. Next, it is realized that Persian-speaking psychologists used more singular first-person self-mentioning metadiscourse markers in their books; however, their English-speaking counterparts used more plural third-person self-mentioning metadiscourse markers in their books. In addition, textual analysis has shown the difference of Persian and English sub-corpora in using hedging, boostering, and self-mentioning metadiscourse markers.

Hedging and boosting are significant communicative resources to construe and attain persuasion in different fields and particular genres of academic writing. Hedges allow the researcher to address possible problems, raise objections or anticipate opposition to the research claims while contributing something new to the ongoing dialogue in a research field. Boosters enormously help to achieve the essential writers’ need to convince their readership of the truth in their propositions. They are mainly used whenever writers consider it not too risky to include them in their propositions. This study aims to investigate the frequencies and functions of hedges and boosters in academic students' essays. To meet this end, 96 students' essays (a total of 269.428 words) were selected from the Michigan Corpus of Upper-Level Student Papers (MICUSP), including English and Psychology disciplines. The corpus was analyzed based on Abdollahzadeh (2019)classification of hedges. The results showed that hedges and boosters were frequent enough to be considered in teaching writing, either reducing or increasing the force of written utterances. The results of this study could be used directly in the syllabus designed for academic essay writing.