手法を比較

	Grammaticality Judgment Task	Acceptability Judgment Task
分野	言語学	言語学
系統	Process / pipeline	Process / pipeline
提唱年	1965	1996
提唱者	Noam Chomsky (generative-linguistics tradition)	Experimental-syntax researchers (Jon Sprouse; Ellen Bard, Antonella Sorace)
種類	Introspective elicitation of linguistic competence	Quantified rating of sentence well-formedness
原典	Chomsky, N. (1965). Aspects of the Theory of Syntax. MIT Press. ISBN: 9780262530071	Sprouse, J., Schütze, C. T., & Almeida, D. (2013). A comparison of informal and formal acceptability judgments using a random sample from Linguistic Inquiry 2001–2010. Lingua, 134, 219–248.
別名	Grammaticality Judgement Task, GJT, Sentence Grammaticality Judgment	Acceptability Judgement Task, AJT, Sentence Acceptability Rating, Experimental Syntax Judgment Task
関連	3	3
概要	The grammaticality judgment task asks speakers to decide whether a sentence is grammatical — well-formed according to the rules of their language — and treats that decision as evidence about the mental grammar that produces it. Rooted in Noam Chomsky's generative program, where the native speaker's intuition is the primary data of linguistics, the task ranges from a single linguist consulting their own intuitions to large controlled experiments with binary, scaled, or forced-choice responses. It is a workhorse of syntactic theory and of second-language acquisition research, where it probes what learners know about a target language beyond what they can produce.	The acceptability judgment task is the modern, quantified successor to informal grammaticality judgments: instead of a single linguist marking a sentence grammatical or not, many participants rate carefully controlled sentences on a graded scale, and the ratings are analyzed statistically. Built on factorial designs with fillers and counterbalancing, and on response formats from Likert scales to magnitude estimation to forced choice, it turns intuition into replicable, gradient data. The approach anchors the experimental-syntax program associated with Jon Sprouse and colleagues, which tests grammatical hypotheses with the same methodological rigor as psycholinguistic experiments.