Question 5 To test a new drug for treating chronic obstructive pulmonary disease

Question

Question 5 To test a new drug for treating chronic obstructive pulmonary disease (COPD), a drug company conducted a single-blind experiment for which only the researchers were aware of the treatments being imposed. A sample of 450 subjects was selected. One-third of the subjects were randomly assigned to receive the new drug, one-third of the subjects were randomly assigned to receive the old drug, and the remaining subjects received a placebo. To compare the effectiveness of the treatments, the respiratory rate of the subjects was measured. The single-blind technique used in this experiment helped to control for 1Subject and Experimenter Bias 2 Subject Bias only 3) Experimenter Bias only

Explanation / Answer

1 ans) subjecvt bias only option b

reason: while using a single-blind procedure and not informing the participants that what actually they are looking for, the people who are in the study will be e less likely to inadvertently bias the results.

2ans) nonadhereres

option b

reason:they are experminting different type of medicines on the subjects which indeed it is an problem in subject

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