Keyword Analysis & Research: what is extraneous variable in research

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what is extraneous variable in research	0.78	0.3	1674	92	39
what	0.06	0.3	1240	2	4
is	0.49	0.1	119	58	2
extraneous	0.46	0.1	9173	88	10
variable	1.34	0.1	4811	16	8
in	0.72	0.9	4087	66	2
research	0.83	0.5	1507	48	8

Keyword	CPC	PCC	Volume	Score
what is extraneous variable in research	1.34	0.2	6005	96