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Lorah, Julie – Large-scale Assessments in Education, 2018
Effect size reporting is crucial for interpretation of applied research results and for conducting meta-analysis. However, clear guidelines for reporting effect size in multilevel models have not been provided. This report suggests and demonstrates appropriate effect size measures including the ICC for random effects and standardized regression…
Descriptors: Effect Size, Hierarchical Linear Modeling, Definitions, Regression (Statistics)
Acar Güvendir, Meltem – International Journal for Mathematics Teaching and Learning, 2016
This study focused on the extrinsic and intrinsic motivation levels of eighth grade students and its relationship with their mathematical achievement. The participants of the study included 6,829 students who took TIMSS in 2011 and 239 mathematics teachers. The data obtained from the student and teacher questionnaires that are included in the…
Descriptors: Mathematics Achievement, Student Motivation, Locus of Control, Grade 8
Yalcin, Seher; Demirtasli, Rahime Nükhet; Dibek, Munevver Ilgun; Yavuz, Hatice Cigdem – International Journal of Progressive Education, 2017
This study investigated effect of student- and school-level variables on mathematics achievement of fourth- and eighth-grade students using the Trends in International Mathematics and Science Study (TIMSS) 2011 data of Turkey. The common variables addressed in student and school questionnaires were compared. Due to nested structure of the TIMSS…
Descriptors: Foreign Countries, Teacher Characteristics, Student Characteristics, Elementary Secondary Education
Wiseman, Alexander W.; Alromi, Naif H.; Alshumrani, Saleh – Citizenship, Social and Economics Education, 2013
This study comparatively examines the impact of students' citizenship status on science education relative to labor market and university expectations in the Kingdom of Saudi Arabia. Specifically, the 2007 Trends in International Mathematics and Science Study (TIMSS) provides science education teaching, learning and achievement data from the…
Descriptors: Foreign Countries, Science Education, Labor Market, Correlation
Zuzovsky, Ruth – Large-scale Assessments in Education, 2013
Background: The association between frequent use of certain instructional practices in mathematics and science and learning outcomes in schools in low-, medium-, and high-achieving countries is the focus of this study. It not only looks at teaching practices "that work" (positively associated with achievement) but whether they…
Descriptors: Mathematics Instruction, Science Instruction, Teaching Methods, Mathematics Achievement

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