asked 66.8k views
0 votes
Which type of research study is set up so that neither subjects nor investigators know which is the active group and which is receiving a placebo?

Question 10 options:

Case control

Double blind

Clinical trial

Epidemiological

asked
User Friveraa
by
8.6k points

1 Answer

5 votes

Answer:

Double Blind.

Step-by-step explanation:

i took the test

answered
User Azalut
by
8.3k points
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