“…After three rounds of refining the coding form and its categories, at least one researcher coded each of the 412 qualifying studies for details such as discipline, class size, type of active learning, type of affective response, and conclusions regarding student responses. Summary results of the coding are presented in this paper, and more detail about the software, coding procedures, coding form, and data management for this collaborative systematic review project are reported elsewhere [14]. Finally, we developed three "quality score" rubrics -one to apply to quantitative studies, one for qualitative studies, and one for studies that used mixed methods -to assess the quality of each study, and at least one researcher used coding data and other study details to calculate a quality score for each of the 412 studies.…”