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Development Of Formal Hypothesis-Testing Ability, David Moshman

Department of Educational Psychology: Faculty Publications

It was postulated that formal operational hypothesis-testing ability includes at least three cognitive capacities: (a) implication comprehension, the ability to understand conditional relationships; (b) falsification strategy, the realization that to test a hypothesis, one must seek information that would falsify it; and(c) nonverification insight, the realization that hypotheses are not conclusively verified by supporting data. A total of 24 males in each of Grades 7, 10, and college evaluated data descriptions with respect to each of four hypothesized implication relationships and chose an experiment to test each hypothesis. Results suggested three sequences of qualitative change in hypothesis-testing ability: (a) from …