Complete the sentences to accurately describe the situation.

Question

Revolt · Accepted Answer

There are treatments, and they are the .:

three

There are treatments, and they are the .:

options for ACL reconstruction

The experimental units are the .:

60 people in the study

Since the experimental units human beings, they are called .:

are

Since the experimental units human beings, they are called .:

subjects

Observational Studies and Experiments