Theoretical approaches and empirical research suggest a decline in the levels of motivational variables and self-esteem among students during the school career. However, precise statements about the magnitude of the change remain elusive. Conducting a meta-analysis of 107 independent longitudinal studies with 912 effect sizes, we found an overall…

Morning orientated students do better in school than evening orientated students (Preckel, Lipnevich, Schneider & Roberts, 2011). For elementary school children who in general are rather morning oriented (Roenneberg et al., 2007) there are only few findings. In the present study, we adapted the LOCI-questionnaire (Roberts, 1998) for parents'…

This longitudinal study investigated the contribution of achievement goals and academic self-concept for the prediction of unexpected academic achievement (i.e., achievement that is higher or lower than expected with respect to students' cognitive ability) in general and when comparing groups of extreme over- and underachievers. Our sample…