how to control for the placebo effect

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
how to control for the placebo effect	0.29	0.4	6331	73	37
how	1.34	0.7	8331	32	3
to	0.2	1	3711	68	2
control	0.75	0.5	3085	83	7
for	1.01	0.5	9401	5	3
the	0.32	0.9	9801	8	3
placebo	1.62	0.3	770	19	7
effect	1.24	0.7	290	59	6

Keyword	CPC	PCC	Volume	Score
how to control for the placebo effect	1.58	0.8	7410	24
placebo effect birth control	1.92	0.5	5167	33
placebo effect control group	0.44	0.8	8871	1
how to avoid placebo effect	1.34	0.9	1477	96
how effective is the placebo effect	0.87	0.5	1056	95
how the placebo effect works	1.1	0.5	4139	12
placebo and placebo effect	0.03	0.8	1236	97
explanation for the placebo effect	1.87	0.9	6972	15
explain the placebo effect	0.57	0.3	6729	40
what is the placebo effect	0.29	0.6	1511	77
information of the placebo effect	0.01	0.7	5096	86
articles on the placebo effect	0.22	0.3	7259	46
what's the placebo effect	1.49	0.4	258	15
describe the placebo effect	0.7	0.3	376	39
power of placebo effect	0.17	0.6	5845	50