In recent years, the regression discontinuity design (RDD) has gained widespread recognition as a quasi-experimental method that when used correctly, can produce internally valid estimates of causal effects of a treatment, a program or an intervention (hereafter referred to as treatment effects). In an RDD study, subjects or groups of subjects…

Teachers can use pedometers to facilitate inquiry learning and show students the need for mathematics in scientific investigation. The authors conducted activities with secondary students that investigated intake and expenditure components of the energy balance algorithm, which led to inquiries about pedometers and related data. By investigating…

This study compared the use of paper/pencil and computer tools for creating concept maps. Participants were 52 students in two combined 9th/10th grade biology classes. An independent measures research design was used. There were two treatment groups: computer and paper/pencil. The computer group created concept maps using Inspiration software…