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Hedging is a well-documented feature of spoken discourse as a result of its role in qualifying categorical commitment and facilitating discussion Its use in academic writing has received less attention, however, and we know little about the functions it serves in different research fields and particular genres Hedging is a significant communicative resource for academics since it both confirms the individual's professional persona and represents a critical element in the rhetorical means of gaining acceptance of claims Hedges allow writers to anticipate possible opposition to claims by expressing statements with precision, caution, and diplomatic deference to the views of colleagues Based on a contextual analysis of 26 articles in molecular biology, this paper argues that hedging in scientific research writing cannot be fully understood in isolation from social and institutional contexts and suggests a pragmatic framework which reflects this interpretive environment
Ken Hyland (1996) studied this question.