Some of the most expensive fighters such as the US F-14 Tomcat, F-15 Eagle, F-22 Raptor and Russian Su-27 were employed as all-weather interceptors as well as air superiority fighter aircraft, while commonly developing air-to-ground roles late in their careers.
The health service measures that best predict subjective health status should be identifiable. Following her further degree in clinical epidemiology and biostatistics, her interest turned to the development of methods to measure subjective health status.
Anything objective sticks to the facts, but anything subjective has feelings. Objective and subjective are opposites. Objective: It is raining. Subjective: I love the rain! Objective is a busy word and that's a fact. An objective is a goal, but to be objective is to be unbiased. If you're objective about something, you have no personal feelings about it.