Personalized mobile English vocabulary learning system
based on item response theory and learning memory cycle
Source︰ Computers & Education
Author︰ Chih-Ming Chen , Ching-Ju Chung
Date︰ 2008
Reporter ︰ 鍾岳豪
Outline
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1. Introduction
2. System design
3. Experiments
4. Conclusions
Introduction
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Huckin, Haynes, and Coady (1993) indicated that
reading ability and vocabulary knowledge are two of
the most important components of performance in a
second language.
To read English articles fluently, a learner must
understand at least 2000 commonly used English
words.
● TOEIC
700 UP , need 7000~10000 vocabularies
Introduction
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Oxford (1990a) pointed out that language learners
typically have significant difficulty remembering
large vocabularies.
The brain when information is learned, gradually disappear over time.
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German philosopher Hermann Ebbinghaus (1885).
Ebbinghaus, based on experimental results,
proposed the forgetting curve.
forgetting curve
Introduction
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Item Response Theory (IRT):
It is a widely used theory in education measurement,
typically applied in the field of Computerized Adaptive Testing
(CAT) (Horward, 1990; Hsu & Sadock, 1985) to select the
most suitable items for examinees based on individual abilities.
It is a body of theory describing the application of
mathematical models to data from questionnaires and tests as
a basis for measuring abilities, attitudes, or other variables.
(wiki)
System design
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The client mobile learning system, which consists of
three intelligent agents and three databases.
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vocabulary recommendation agent
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learning performance assessment agent
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test agent
support off-line learning
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Data synchronized agent
Test:
System design
System design
System design
System design
System design
System design
Experiments
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15 three-year university students who were
majoring in the Department of English Teaching at
National Hualien University of Education.
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two male and 13 female
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received the two hours PDA training course
Experiments Time: Five weeks
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e-mail to remind
Test:15 multiple-choice questions and 15 cloze questions
averagely selected from three vocabulary levels of GEPT in
Taiwan.
Experiments
Experiments
Experiments
Experiments
Questionnaire analysis:
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( questionnaire which involves 18 questions)
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the investigation of the learners’ learning attitude towards using the
proposed learning system
the suggestions from learners’ feedback responses
● self-assessment of learners’ English vocabulary ability
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Experiments
Experiments
Experiments
Experiments
Conclusions
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Experimental results demonstrated that most
learners believe the review strategy is very helpful
when learning English vocabulary.
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Personalized mobile English vocabulary learning
system facilitates English learning without
constraints of time or place by mobile devices.