Abstract
The present study reports the results of a randomized controlled trial aimed at fostering specific aspects of pre-service teachers’ data literacy. The 6-h intervention focused on data types, reference norms, scale transformations, graphic displays of the properties of frequency distributions, and judgments about the magnitude of mean differences. Pretest-posttest comparisons of a data literacy test showed a large and significant effect of the intervention. Furthermore, main effects but no significant interaction effects with pretest scores were found for personal and motivational covariates (academic self-concept, value beliefs, study interest) on posttest data literacy.
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