The subjects do not know whether they are given aspirin or a placebo, and the evaluators who
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The subjects do not know whether they are given aspirin or a placebo, and the evaluators who measure the pulse rates also do not know. This trial is:
(a) Single-blind
(b) Double-blind
(c) Not blinded
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Related Book For
Statistical Reasoning For Everyday Life
ISBN: 978-0134494043
5th Edition
Authors: Jeff Bennett, William Briggs, Mario Triola
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