25. Johnson is hired by a company to sce if a new product, Topocal, will causs o

Question

25. Johnson is hired by a company to sce if a new product, Topocal, will causs of bald men. He recruits one thousand bald men and randomly dividesr fiye hundred te what the resuts hundred men (group A) rub Topocal on their scalps each day; the other standard skin lotion on their scalps each day. After two months, Johns have been. He finds that there has been hair growth in 7 percent of group ive vides t into two groups: F percent of group The category that best fits this study is and in see what trub a A. prospective observational study. B. retrospective observational study. C. randomized controlled experiment.

Explanation / Answer

The correct option is option (c) randomised controlled experiment as in this type of experiment one group of study will be given the test product and the another group of study people will not be given that product.. Then after some days or time (depending on the experiment) the result will be checked for the given desired product in comparison to the control non given people..

As in this case the effects of the Topocol is checked on the basis of the control group B people who were not given the Topocol..!!

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