Planning Experiments in Science Education Research: Comparison of a Quasi-Experimental Approach with a Matched Pair Tandem Design
International Journal of Environmental and Science EducationCilt 2008/3, Sayı 3
The planning of adequate control groups is a central aspect of educational research. Didactical studies, however, are often field studies encountering many problems of everyday classroom teaching? Recent research has indicated that teachers and their beliefs have an enormous influence …