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Direct linkKubinger, Klaus D.; Rasch, Dieter; Yanagida, Takuya – Educational Research and Evaluation, 2011
Though calibration of an achievement test within psychological and educational context is very often carried out by the Rasch model, data sampling is hardly designed according to statistical foundations. However, Kubinger, Rasch, and Yanagida (2009) recently suggested an approach for the determination of sample size according to a given Type I and…
Descriptors: Sample Size, Simulation, Testing, Achievement Tests
Dilber, Refik; Karaman, Ibrahim; Duzgun, Bahattin – Educational Research and Evaluation, 2009
The aim of this study was to investigate the effectiveness of conceptual change-based instruction and traditionally designed physics instruction on students' understanding of projectile motion concepts. Misconceptions related to projectile motion concepts were determined by related literature on this subject. Accordingly, the Projectile Motion…
Descriptors: Experimental Groups, Control Groups, Scientific Concepts, Instructional Effectiveness
De Vries, Bregje; Pieters, Jules – Educational Research and Evaluation, 2007
To improve the quality in teaching and learning, opportunities need to be provided where practitioners and researchers meet and share visions, disseminate findings, co-construct ideas, and set research agendas together. Visiting a conference is one well-known and established way to do this. But are they effective? A survey was conducted among the…
Descriptors: Foreign Countries, Information Dissemination, Educational Researchers, Conferences (Gatherings)
