The November 17, 1994 issue of The New England Medical Journal reported upon a study of the effects of hormone therapy upon middle-aged women. About 950 women took part in the study; half were chosen randomly to receive the hormone therapy and the other half was given a placebo (they didn't know which). After about a year, blood tests were conducted on each subject by the lab technician who was unaware of which group (treatment or placebo) the blood samples originated from. In presenting the results of experiment, the authors reported that the women in the treatment group had experienced the statistically significant amplify in HDL (the so-called "good" cholesterol) and the statistically significant reduction in LDL (the so-called "bad" cholesterol) when compared with control group.
Select All that Apply
A. This study would be classified as un-blinded.
B. The treatments were the hormone therapy and the placebo.
C. This study would be classified as double-blind.
D. The subjects were the blood tests.
E. This is an example of a completely randomized design.
F. This study would be classified as single-blind.
G. This is an example of a block design.
H. The subjects are the 950 women in the study.
I. The treatments were the HDL and the LDL.
J. This is an example of a matched pairs design.