We describe an exercise involving the power balance wristband (PBW) designed to enhance students' ability to design scientific tests. An instructor demonstrated that the PBW improved a student's balance, strength, and flexibility and invited students to design and conduct a brief scientific test of the PBW. Research methods students who…

This study suggests a novel approach, which integrates an explicit-reflective nature of science (NOS) instruction into the teachers-as-researchers approach to improve pre-service science teachers' conceptions of NOS. Participants were 48 university fourth-year students in a four-year pre-service science teacher-training program in Turkey. The…

This publication contains 12 (A3 open-out) poster-style reports of teacher experimental research. The style of presentation parallels the type of preliminary reporting common at academic conferences and postgraduate events. At the same time, it aims to act as a form of short primer to introduce teachers to the basic options that there are when…

Experimental designs are distinguished as the best method to respond to questions involving causality. The purpose of the present paper is to explicate the logic of experimental design and why it is so vital to questions that demand causal conclusions. In addition, types of internal and external validity threats are discussed. To emphasize the…

Expresses the importance of scientifically based research in education reform and explains how to judge the validity of educational research. Describes control groups, randomized and matched experiments, statistical educational significance, sample size, and the difference between scientifically based and rigorously evaluated research. (Contains…