Question

In a __________ study, the subjects do not know to which group they are assigned, but the researchers are aware of the subjects’ group assignments. a. double-blind b. placebo c. single-blind d. control please select the best answer from the choices provided a b c d

Answer 1

Answer: C or Single-Blind

Explanation: your welcome!:)

Answer 2

Answer: Single-blind if that's one of the answers.

Step-by-step explanation: