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50 Years of ERIC
50 Years of ERIC
The Education Resources Information Center (ERIC) is celebrating its 50th Birthday! First opened on May 15th, 1964 ERIC continues the long tradition of ongoing innovation and enhancement.

Learn more about the history of ERIC here. PDF icon

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Kyriakides, Leonidas; Creemers, Bert P. M. – Educational Research and Evaluation, 2012
School policy on teaching and the school learning environment (SLE) are the main school factors of the dynamic model of educational effectiveness (Creemers & Kyriakides, 2008). A longitudinal study in which 50 primary schools, 108 classes, and 2369 students participated generated evidence supporting the validity of the dynamic model. This article…
Descriptors: Structural Equation Models, Mathematics Achievement, Program Effectiveness, Educational Environment
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Kyriakides, Leonidas; Antoniou, Panayiotis – Educational Research and Evaluation, 2009
This paper presents findings from research exploring gender by item difficulty interaction on mathematics test scores in Cyprus. Data steamed from 2 longitudinal studies with 4 different age groups of primary school students. The hypothesis that boys tended to outperform girls on the hardest items and girls tended to outperform boys on the easiest…
Descriptors: Social Class, Females, Mathematics Achievement, Mathematics Tests
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Teddlie, Charles; Creemers, Bert; Kyriakides, Leonidas; Muijs, Daniel; Yu, Fen – Educational Research and Evaluation, 2006
This article presents information on 2 international educational effectiveness studies, one completed and the other ongoing. The 2nd study is, to a large degree, a reaction to a methodological problem encountered in the 1st study, the lack of an internationally valid instrument measuring teacher effectiveness. This article presents 4 reasons for…
Descriptors: Teacher Effectiveness, Foreign Countries, Longitudinal Studies, International Studies
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Kyriakides, Leonidas – Educational Research and Evaluation, 2006
This paper is concerned with the importance of testing and developing integrated multilevel educational effectiveness models through comparative studies in educational effectiveness. It is argued that secondary analyses of international comparative studies could help researchers test and develop integrated multilevel educational effectiveness…
Descriptors: Comparative Analysis, Researchers, Models, Academic Achievement
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Kyriakides, Leonidas – Educational Research and Evaluation, 2004
This article reviews school effectiveness theory, concentrating on the unidimensionality of the school effect concept, and focuses on differential school effectiveness, by which is meant the capacity of the school to be effective with different groups of pupils. It presents findings from research exploring the associations between sex, social…
Descriptors: Gender Differences, Social Class, School Effectiveness, Foreign Countries
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Gagatsis, Athanasios; Kyriakides, Leonidas – Educational Research and Evaluation (An International Journal on Theory and Practice), 2000
Studied the attitudes of 254 teachers in Cyprus toward their students' errors in mathematics. Teachers who had attended a specialized inservice course in teaching mathematics were more likely to be influenced by cognitive theory and the obstacle theory of knowledge. (SLD)
Descriptors: Educational Theories, Foreign Countries, Inservice Teacher Education, Mathematics