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Van den Broeck, Ann; Opdenakker, Marie-Christine; Van Damme, Jan – Educational Research and Evaluation, 2005
In Flanders, 2 classes per school were selected to participate in TIMSS. Therefore, a multilevel model with an intermediate level could be implemented. The data collection was extended with additional questionnaires and an intelligence test. The empty model revealed that 57% of the variance of mathematics scores was situated at the student level,…
Descriptors: Student Characteristics, Intelligence, Mathematics Achievement, Secondary School Mathematics