Evidence of concomitant variation, time order of occurrence of variables, and elimination of other possible causal factors, when combined, demonstrate conclusively that a causal relationship exists

Knowing differences in writing for the eye and for the eye and ear is critical if you expect to be an effective public relations writer

Indicate whether the statement is true or false

Many of today's programming languages give the programmer easy access to complex technologies by ________

a) providing accompanying documentation b) hiding most of the complexity c) providing the source code d) hiding the interface