Keyword Analysis & Research: what is meant by internal validity

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what is meant by internal validity	0.72	0.3	6090	100	34
what	1.14	0.2	561	54	4
is	0.57	0.7	4396	1	2
meant	1.64	1	8168	10	5
by	1.93	1	8277	99	2
internal	1.76	0.4	188	47	8
validity	1.85	0.1	3478	33	8

Keyword	CPC	PCC	Volume	Score
what is meant by internal validity	0.52	0.2	7535	7
what is meant by external validity	2	0.2	7329	57