Johnson Is Hired by a Company to See If a New

question 103

Multiple Choice

Johnson is hired by a company to see if a new product, Topocal, will cause hair to grow on the heads of bald men. He recruits one thousand bald men and randomly divides them into two groups: Five hundred men (group A) rub Topocal on their scalps each day; the other five hundred (group B) rub a standard skin lotion on their scalps each day. After two months, Johnson checks to see what the results have been. He finds that there has been hair growth in 7 percent of group A and in 2 percent of group B.The category that best fits this study is

• A)prospective observational study.
• B)retrospective observational study.
• C)randomized controlled experiment.

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Definitions:

Excoriation

Injury to the surface of the skin caused by abrasion.

Nasogastric Tube

A medical device inserted through the nose and down into the stomach, used for feeding or removing stomach contents.

Water-Soluble Lubricant

A lubricant that is easily dissolved in water, commonly used in medical procedures or personal care products.

Guaiac Test

A diagnostic test used to detect the presence of blood in stool, which can indicate gastrointestinal bleeding or disorders.