Question 11(1 point)

A group of researchers want to determine if a new supplement is truly effective in improving energy and alertness.A sample of participants are randomly assigned to either the treatment group which receives this supplement, or the control group which receives a placebo.Measures of health along the lines of increased alertness are carefully identified and measured.Neither the participants, nor the attending researchers or physicians analyzing the results know to which group they belong.How would you classify this study?

Question 11 options:

A)

Randomized Controlled Experiment

B)

Retrospective Study

C)

Prospective Study

D)

Observational Study

E)

All of the choices are correct