tasha is a graduate student studying health and nutrition. a recent study has made claims about the health…

tasha is a graduate student studying health and nutrition. a recent study has made claims about the health benefits of dark chocolate. tasha would like to conduct a similar study to see if she can confirm the findings of the first. she wants to make sure that her study is as close to the original as possible. which factors of her study can she control? check all that apply. lifestyle and physical condition of the subjects the number of subjects genetic variances among the subjects age and sex of the subjects length of the study
Answer
Brief Explanations:
Tasha can control the number of subjects by recruiting a specific - sized sample. She can also control the age and sex of subjects by setting inclusion - exclusion criteria. The length of the study can be pre - determined. Lifestyle and physical condition are hard to fully control as subjects have their own habits. Genetic variances are inherent and not controllable.
Answer:
the number of subjects, age and sex of the subjects, length of the study