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Instructional Efficiency of Changing Cognitive Load in an Out-of-School Laboratory
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Scharfenberg, Franz-Josef; Bogner, Franz X. – International Journal of Science Education, 2010
Our research objective focused on monitoring students' mental effort and cognitive achievement to unveil potential effects of an instructional change in an out-of-school laboratory offering gene technology modules. Altogether, 231 students (12th graders) attended our day-long hands-on module. Within a quasi-experimental design, a treatment group…
Descriptors: Instructional Effectiveness, Efficiency, Difficulty Level, Cognitive Processes