مقایسهٔ روش‌ها

	Corpus-Assisted Discourse Studies	Keyness Analysis
حوزه	زبان‌شناسی	زبان‌شناسی
خانواده	Process / pipeline	Process / pipeline
سال پیدایش	2004	1997
پدیدآور	Alan Partington and colleagues	Mike Scott
نوع	Mixed-methods corpus-and-discourse analytic approach	Corpus comparison of relative word frequencies
منبع بنیادین	Partington, A., Duguid, A., & Taylor, C. (2013). Patterns and Meanings in Discourse: Theory and Practice in Corpus-Assisted Discourse Studies (CADS). John Benjamins. ISBN: 9789027203885	Scott, M. (1997). PC analysis of key words — and key key words. System, 25(2), 233–245.
نام‌های دیگر	CADS, Corpus-Assisted Discourse Analysis, Corpus-Based Discourse Analysis	Keyword Analysis, Corpus Keyness, Keyness Statistics
مرتبط	4	3
خلاصه	Corpus-Assisted Discourse Studies (CADS) is a mixed-methods approach that combines the quantitative power of corpus linguistics with the interpretive depth of discourse analysis to investigate how meanings, evaluations, and ideologies are constructed across large collections of text. Pioneered by Alan Partington and colleagues, CADS uses corpus techniques such as keyness, collocation, and concordancing to identify patterns no analyst could find by reading alone, then 'shunts' back to close qualitative reading to interpret what those patterns mean in their discursive context.	Keyness analysis identifies the words that are characteristically frequent (or infrequent) in a target corpus relative to a reference corpus, using statistical tests to measure how unexpected each word's frequency is. Introduced by Mike Scott in 1997, it answers the question 'what is this text or collection distinctively about?' and is a central technique in corpus linguistics and corpus-assisted discourse analysis for surfacing the salient vocabulary of a genre, period, author, or social group.