When a study uses no blinding or single blinding, the critical consumer should view this research as having less internal validity than a double-blind study.
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Q18: Effectiveness has a negative relationship with internal
Q19: Secondary questions are the type of questions
Q20: The key limitation of the factorial study
Q21: Effectiveness is the clinical term for internal
Q22: Because clinical trials focus on studying treatments
Q24: Ancillary questions are addressed by the no
Q25: The placebo arm is the clinical trial
Q26: Use of placebos and shams allows you
Q27: A disadvantage of simple randomization is that
Q28: One of the disadvantages of using stratified
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