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Richter, David; Lehrl, Simone; Weinert, Sabine – Early Child Development and Care, 2016
The present paper was written under the auspices of the interdisciplinary research group "Educational Processes, Competence Development, and Selection Decisions at Preschool and Primary School Age (BiKS)" (FOR 543), funded by the German Research Foundation (DFG). The surveys were conceptualised and supervised as part of the developmental…
Descriptors: Elementary School Students, Developmental Psychology, Financial Support, Interdisciplinary Approach
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Asendorpf, Jens B.; van de Schoot, Rens; Denissen, Jaap J. A.; Hutteman, Roos – International Journal of Behavioral Development, 2014
Most longitudinal studies are plagued by drop-out related to variables at earlier assessments (systematic attrition). Although systematic attrition is often analysed in longitudinal studies, surprisingly few researchers attempt to reduce biases due to systematic attrition, even though this is possible and nowadays technically easy. This is…
Descriptors: Longitudinal Studies, Attrition (Research Studies), Statistical Bias, Statistical Analysis