Question

Twenty sprint cyclists were randomly selected to be in a study designed to test the effectiveness of 12 weeks of creatine supplementation on performance. Ten cyclists received a creatine supplement for three months while the other ten received a placebo. The cyclists did not know which supplement they were taking, while the researcher did have this information.

This is an example of a(n) ____ study

Answer 1

Below

Step-by-step explanation:

SINGLE BLIND study ....the participants do not know but the researcher does know .

If BOTH researcher and participants did not know it would be a double blind study .