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An Analysis of the Experimental Designs Suggested by Students for Testing Scientific Hypotheses  

Park, Jong-Won (Chonnam National University, Department of Physics Education)
Publication Information
Journal of The Korean Association For Science Education / v.23, no.2, 2003 , pp. 200-213 More about this Journal
Abstract
This study is one of the successive studies for investigating students' processes of generating and evaluating scientific hypothesis. In this study, I analyzed the characteristics of students' experimental design to test whether the given hypotheses were correct or not. As results, it was found that (1) 3 components (experimental method, prediction of the result of experiment, evaluation of hypothesis) were needed to complete description of the experimental design, (2) students tried to test hypothesis considered as being correct as well as hypothesis considered as being false by students, (3) student tried to confirm hypothesis, which was considered as being correct, based on theoretical approach rather than experimental approach, (4) students' experimental design could be classified as two types, that is, direct experimental testing and comparative experimental design, and the latter could be classified as two subtypes; positive comparative one and negative comparative one, (5) students showed tendency to design positive comparative experiment when they considered hypothesis as being correct, and vise versa, (6) students preferred the prediction which could confirm the hypothesis when they considered the hypothesis as being correct, and vise versa, (7) many students rejected contradicting prediction even though they did not actually conduct experiment yet.
Keywords
test of scientific hypothesis; experimental design; biased response;
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Times Cited By KSCI : 1  (Citation Analysis)
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