This theory states that there is a critical period in language
acquisition, from very early childhood up to adolescence. If a
language is not acquired during this stage, the learner will
not usually achieve native speaker competence.
(A) Input Comprehensible (B) Critical Period Hypothesis
(C) Multiple Intelligences (D) Interactionist
Viva Lin 高三上 (2013/06/10) 關鍵期假設理論是語言學理論,英文爲Critical Period Hypothesis,簡稱CPH。關鍵期是指一個有機體生命中的一段時間,在這段時間里,某些外部條件對有機體的影響可以超過在其他時間所能達到的程度。語言穫得的關鍵期的研究由來已久。認同「愈早開始學習外語,成效愈好」的人,在學理上常引用「語言學習關鍵期假說」(The Critical Period Hypothesis)來論證此項觀點。