Measuring implicit and explicit knowlegde of a secong language: A psychometric study

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Show simple item record Ellis, R. en 2009-09-07T01:21:12Z en 2009-09-07T01:21:12Z en 2005 en
dc.identifier.citation Studies in Second Language Acquisition 27 (2), 141-172. 2005 en
dc.identifier.issn 0272-2631 en
dc.identifier.other eid=2-s2.0-33644595196 en
dc.identifier.uri en
dc.description.abstract A problem facing investigations of implicit and explicit learning is the lack of valid measures of second language implicit and explicit knowledge. This paper attempts to establish operational definitions of these two constructs and reports a psychometric study of a battery of tests designed to provide relatively independent measures of them. These tests were (a) an oral imitation test involving grammatical and ungrammatical sentences, (b) an oral narration test, (c) a timed grammaticality judgment test (GJT), (d) an untimed GJT with the same content, and (e) a metalinguistic knowledge test. Tests (a), (b), and (c) were designed as measures of implicit knowledge, and tests (d) and (e) were designed as measures of explicit knowledge. All of the tests examined 17 English grammatical structures. A principal component factor analysis produced two clear factors. This analysis showed that the scores from tests (a), (b), and (c) loaded on Factor 1, whereas the scores from ungrammatical sentences in test (d) and total scores from test (e) loaded on Factor 2. These two factors are interpreted as corresponding to implicit and explicit knowledge, respectively. A number of secondary analyses to support this interpretation of the construct validity of the tests are also reported. en
dc.publisher Cambridge University Press en
dc.relation.ispartofseries Studies in Second Language Acquisition en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from en
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dc.source.uri en
dc.title Measuring implicit and explicit knowlegde of a secong language: A psychometric study en
dc.type Journal Article en
dc.identifier.doi 10.1017/S0272263105050096 en
pubs.issue 2 en
pubs.begin-page 141 en
pubs.volume 27 en
dc.rights.holder Copyright: Cambridge University Press. en
pubs.end-page 172 en
dc.rights.accessrights en

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