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.
A subjective statement is one that refers to a subject. Anything else is objective. Does objective value mean anything that is independent of one's mind? Meaning, no matter what one agrees or disagrees of the existence of something, it still exists? Whereas subjective value is mind-dependent? Subjective theories of value can have a number of meanings e.g.