Question

A researcher wants to determine if a new treatment program of yoga and vitamin A will improve test-taking skills in college students. To ensure that participants in the experimental condition are very similar to participants in the control condition, the researcher should:a. Randomly assign the participants to the conditions.
b. Choose the first people who signed up for the study to be in the control condition.
c. Ask for volunteers from a local yoga school.
d. Let the participants choose whether they want to be in the experimental or control condition.

Answer 1

Answer:

Option a

Explanation:

Random selection or random sampling from a given population is the most appropriate way, especially in experimental studies. This method is simple and accurate. According to the above-mentioned case, if the researcher selects students randomly for the experimental and control group, then each of them would have an equal chance of selection. Hence, the results would be generalized and not biased.