The appropriate guideline for testing potential employees is:

Question $31$ options:

$1)$

a test must exhibit a reasonable consistency in results obtained.

$2)$

a test must measure precisely what a test is designed to determine.

$3)$

a test that is both valid and reliable cannot be unfair.

$4)$

Griggs v$.$ Duke Power Company, which prohibits employers from requiring a high school education as a prerequisite for employment or promotion without demonstrable evidence that the associated skills relate directly to job performance.