Overall Research (All of It Analyzed Together) Tends to Show

Overall research (all of it analyzed together) tends to show that the validity of the interview as an employment tool is essentially zero. That means

A) There is little mistake in using the interview, i.e. zero validity.
B) The interview resulted in selecting the best, or a better, candidate for a job about as often as it resulted in selecting the worst, or a poor, candidate for the job.
C) If reliability of the interview is high, the interview is a good employee selection tool even with zero validity.
D) It takes zero training to use the interview well.
E) The interview should be used in all employment decisions.