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ERIC Number: EJ118400
Record Type: Journal
Publication Date: 1975
Pages: N/A
Abstractor: N/A
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Syllogistic Reasoning: Generation of Counterexamples
Helsabeck, Fred
Journal of Educational Psychology, 67, 1, 102-8, Feb 75
Results indicate that for the task of generating counterexamples to invalid syllogisms, a primary source of difficulty is the first step of forming the negation of the conclusion, especially if the conclusion is a "Some are not" statement. When this step is done for the subject, most of the errors disappear. (Author/BJG)
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