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Ber [7]
3 years ago
15

Scientists conduct a study in which 100 adults with chronic diarrhea are divided into 2 groups with 50 people per group. One gro

up is given a supply of yogurt that contains a certain kind of bacteria, and the other group is given yogurt that is bacteria-free. The study's participants and researchers do not know which group of subjects has the bacteria in the yogurt and which group does not. The scientists instruct the participants to eat the entire 8 ounces of yogurt once a day for a month and record their bowel habits. This is an example of a(n) ________ study.
a. introspectiveb. hypotheticalc. uncontrolledd. double-blind
Health
1 answer:
dem82 [27]3 years ago
7 0

Answer: d. double-blind

Explanation:

A double blind study can be define as the study in which both the researcher and participant do not know which participant is receiving a particular treatment. This method is useful as it prevents the bias in the results of the experiment.

The given situation is the example of double-blind study. Here, the participants as well as the researcher do not know which group of subject are receiving bacteria in the yogurt and which group is not receiving.    

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