Validity

Validity is strategy evaluation criterion associated with the strategy and its related calculations and other assumptions being well-grounded and meaningful.

Definitions

According to the Corporate Strategy by Lynch (4th edition),

Validity. Strategy evaluation criterion associated with the strategy and its related calculations and other assumptions being well-grounded and meaningful.

According to the HRBoK Guide,

Validity. Reliability, true evaluation. The extent to which something is accurate (for example, the extent to which an exam actually measures what it claims to measure).