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Download full textFreer, Benjamin D.; Lorch, Elizabeth P.; Lorch, Robert F., Jr.; Calderhead, William – Society for Research on Educational Effectiveness, 2011
A crucial element of the logic of the scientific method is the Control of Variables Strategy (CVS), in which conclusions about causal relations are enabled by manipulating a focal variable of interest while holding all other variables constant. Understanding CVS in elementary grades generally is poor, but can be improved with systematic…
Descriptors: Direct Instruction, Intervention, Student Reaction, Scientific Methodology
