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Wolff, Fabian; Sticca, Fabio; Niepel, Christoph; Götz, Thomas; Van Damme, Jan; Möller, Jens – Journal of Educational Psychology, 2021
Two longitudinal extensions of the classic internal/external frame of reference model (I/EM) have attracted researchers' attention in recent years: The reciprocal I/EM (RI/EM) describes the reciprocal effects between students' math and verbal achievements and self-concepts. The 2I/EM describes the effects of students' math and verbal achievement…
Descriptors: Mathematics Achievement, Verbal Ability, Self Concept, Models
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Steinmayr, Ricarda; Beauducel, Andre; Spinath, Birgit – Intelligence, 2010
Recently, different methodological approaches have been discussed as an explanation for inconsistencies in studies investigating sex differences in different intelligences. The present study investigates sex differences in manifest sum scores, factor score estimates, and latent verbal, numerical, figural intelligence, as well as fluid and…
Descriptors: Intelligence, Intelligence Tests, Factor Analysis, Effect Size