Many tests are backed by a wealth of studies that demonstrate how personality / ability scores relate to occupational behaviour. (newscientist.com)
Players can further improve their combat effectiveness by spending attribute points on the appropriate ability score for their weapon types. (onrpg.com)
In practice, psychometricians usually act as if ability scores are on an equal - unit scale (or, in technical terms, an «interval» scale). (educationnext.org)