Concept explainers
Exercises 37 through 40 refer to a clinical study conducted at the Houston Veterans Administration Medical Centre on the effectiveness of knee surgery to cure degenerative arthritis (osteoarthritis) of the knee. Of the 324 individuals who met the inclusion criteria for the study,
a. Could this study be considered a randomized controlled study? Explain.
b. Was this study blind, double blind, or neither?
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Excursions in Modern Mathematics (9th Edition)
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