Question

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

Explanation:

• The number of subjects: Tasha can decide how many people participate in her study.
• Age and sex of the subjects: She can select participants based on specific age ranges and genders.
• Length of the study: Tasha has control over how long the study will be conducted.

• Lifestyle and physical condition of the subjects: These are individual characteristics that are difficult to fully control.
• Genetic variances among the subjects: Genetic makeup is inherent and not something that can be easily controlled in a study.

Answer:

B. the number of subjects, D. age and sex of the subjects, E. length of the study