Validity analysis, is that the measured results reflect the extent desired content inspection, measurement results and to examine the contents of the agreement, the better the validity; on the contrary. Worse.
The efficiency analysis refers to the measured results reflect the degree of the content you want to examine, and the more the measurement results coincide with the content to be examined, the better the validity; The worse.
Validity analysis refers to the degree to which the measured results reflect the content to be examined. The more consistent the measured results are with the content to be examined, the better the validity is; on the contrary. The worse.