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When using the dependent samples t-test (either the pretest-posttest version or the matched-samples version), what is N (as used in the calculation of degrees of

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When using the dependent samples t-test (either the "pretest-posttest" version or the "matched-samples" version), what is N (as used in the calculation of degrees of freedom)? (A) number of pairs of scores O B) number of participants O C) total number of scores OD) number of variables

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