Cross-country predictive validities of non-cognitive variables for mathematics achievement: evidence based on TIMSS 2015

A new research paper authored by Jihyun Lee and Minge Chen, illustrates empirical findings that measure predictive validities of non-cognitive variables for mathematics achievement based on the TIMSS 2015 study, for students in the primary and secondary school across multiple countries. It was founded in the study that confidence was the strongest predictor of performance in mathematics in all countries and across primary and secondary schools, followed by interest in the subject which was a stronger predictor in the secondary school graders than primary school graders in most of the countries.Sense of belonging, another non-cognitive variable, showed little correlation with primary school graders' achievement, while bullying was reported to have predictive relevance in a total of 3 countries only.

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