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Caglayan, Gunhan; Olive, John – Educational Studies in Mathematics, 2010
This study examines eighth grade students' use of a representational metaphor (cups and tiles) for writing and solving equations in one unknown. Within this study, we focused on the obstacles and difficulties that students experienced when using this metaphor, with particular emphasis on the operations that can be meaningfully represented through…
Descriptors: Mathematics Education, Figurative Language, Grade 8, Equations (Mathematics)
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Marsh, Herbert W.; Nagengast, Benjamin; Morin, Alexandre J. S.; Parada, Roberto H.; Craven, Rhonda G.; Hamilton, Linda R. – Journal of Educational Psychology, 2011
Existing research posits multiple dimensions of bullying and victimization but has not identified well-differentiated facets of these constructs that meet standards of good measurement: goodness of fit, measurement invariance, lack of differential item functioning, and well-differentiated factors that are not so highly correlated as to detract…
Descriptors: Locus of Control, Test Bias, Bullying, Structural Equation Models
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Sharp, Shannon R. – Journal of Applied School Psychology, 2005
Sixteen seventh and eighth graders previously identified as having behavioral problems earned significantly higher post-test scores on a test of REBT concepts immediately after participation in a Rational Emotive Behavioral Therapy (REBT) training program, and this knowledge was retained after an 8-week follow-up period (p less than 0.01).…
Descriptors: Aggression, School Psychologists, Effect Size, Scores