Based on cognitive load theory, the effect of different levels of instructional detail and expertise in a simulation-based environment on learning about concepts of correlation was investigated. Separate versions of the learning environment were designed for the four experimental conditions which differed only with regard to the levels of written…

Background: Cluster-randomized experiments that assign intact groups such as schools or school districts to treatment conditions are increasingly common in educational research. Such experiments are inherently multilevel designs whose sensitivity (statistical power and precision of estimates) depends on the variance decomposition across levels.…

Project-based learning (PBL) is a highly effective means of motivating students to learn independently. However, training or encouraging teachers to practice PBL in their classrooms is challenging, especially if the educational system does not accommodate creative teaching practices. In particular, in a test-driven educational system, time…

The purpose of the study was to explore the extent to which a prototype multi-media self-instructional system comprised of 48 lessons can be used to help grade 11 and 12 students acquire defined levels of Gregg shorthand capabilities. Criteria for measuring student competencies and performance objectives at interim points and at the completion of…

To compare the relative effectiveness of a film slide-audio tape and a printed brochure as a means of conveying information and influencing student attitudes relative to industrial arts teaching as a career choice, and to identify those concepts and factors which can most effectively be presented by each method, an experiment was conducted…