Question

Select all the correct answers.
When doing medical research with human subjects, which four limitations are unavoidable?

It’s often impossible to repeat trials on the same subjects.
Subjects may report an inaccurate medical history.
It can be difficult to control all possible variables.
It’s impossible to come up with testable scientific questions for human subjects.
There are ethical or privacy concerns to consider.

Answer 1

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Answer 2

While conducting medical research on human subjects, these 4 limitations are unavoidable:

- Medical research always bring up ethical and privacy concerns  

- It is a possibility that the subjects fails to provide authentic information.

- Sometimes it becomes difficult to repeat trials on the same subject

- It can be difficult to control all the variables.