This pretest-posttest study investigated 64 pre-service teachers' perceptions of the impact of a 6-h data literacy intervention, which involved scoring classroom assessments, and analyzing, interpreting, and making decisions based on the data. The study also examined changes in participants' self-reported attitudes and beliefs and objectively-measured data literacy during the intervention. Participant reports suggest that the intervention increased the pre-service teachers' knowledge and skills related to data literacy. Pretest-posttest changes were also observed in three attitudes/beliefs (ds ranged from .34 to .46) and data literacy (d = .60). Findings contribute to the small and nascent body of scholarship concerning pre-service data literacy interventions. (C) 2015 Elsevier Ltd. All rights reserved.
