| Budget Amount *help |
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
In memorization of words, retrieval practice of previously studied items can produce better long-term retention than restudying the same items. However, retrieving a subset of learned items also impairs recall of related items from the study phase. Thus, efficient condition of memorization by retrieval practice was not clear. The current study examined a boundary condition that people efficiently develop their vocabulary in a foreign language. Specially, I focused a semantic similarity between retrieved words and non-retrieved words. Participants studied Japanese-English word pairs and then retrieved some of the studied pairs. Finally, a cued-recall test of all the studied pairs was conducted. The results showed retrieval practice facilitated later recall of nontested words of different synonym level from RP+ items, but not recall of nontested words of same synonym level as RP+ items. This finding suggests a boundary condition that people develop richer foreign language vocabularies.
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