Researchers studied the horb black cohosh as a treatmen t for hot tashes caused

Question

Researchers studied the horb black cohosh as a treatmen t for hot tashes caused by menopause They randomly assigned 355 women aged 50 to 60 who reported at advice to consume more t therapy, or a placebo After a year only the women given estrogen replacement therapy had symptoms ditfering from those of the a year only the wonen given estropen replacement therapy had symptoms ditering from those of the mulliherb supploment with black cohosh, the multiherb supplement plus least two hot flashes a day to one of five groups black cohosh, a placebo group Complete parts a) through d) below a) What kind of study was this? Select all that apply ?A, Double-blind placebo growp complote parts a throug C. Blocked E. Randomized l B. Placebo-controled D. Retrospective FProspective C) H. Exporiment G. Observational b) Is that an appropriate choice for investigating this problom? O A No, because there should already be plenty of past data on this issue available O B. Yes, because the goal was to determine the emocts of black cohosh on hot flashes c. O D. Yes, because all studies should bo done that way No, because there needs to be randomness to the study c) Who were the subjects? the soy consumption advice, the estrogen replacement therapy, and the placebo O A. The black cohosh, the multherb supplement, O B. All horbs O C. The researchers O D. All women Click to select your answer(s)

Explanation / Answer

a) this study is a

randomized

comparative

placebo-controlled experiment

b) option b

Yes, such an experiment is the right way to determine whether black cohosh is an effective treatment for hot flashes
c) option e

The subjects were 355 women, between the ages of 45-55, who reported at least 2 hot flashes a day

d) The treatments were

black cohosh

a multiherb supplement plus advice

estrogen

A placebo.

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