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Direct linkKretschmann, Julia; Vock, Miriam; Lüdtke, Oliver – Journal of Educational Psychology, 2014
Using German data, we examined the effects of one specific type of acceleration--grade skipping--on academic performance. Prior research on the effects of acceleration has suffered from methodological restrictions, especially due to a lack of appropriate comparison groups and a priori measurements. For this reason, propensity score matching was…
Descriptors: Foreign Countries, Academic Achievement, Elementary School Students, Acceleration (Education)
Topping, K. J.; Trickey, S. – British Journal of Educational Psychology, 2007
Background: Debates about the modifiability of cognitive ability have been largely resolved by reports of successful "thinking skills" interventions. However, such interventions are very diverse and generalization of effects relatively little explored. Aims: This study investigated whether a thinking skills intervention involving…
Descriptors: Intervention, Generalization, Effect Size, Control Groups
