Think of two examples of your own which illustrate how credibility can be affected by vested interest or bias. (You may fi nd it helpful to think of internet sites.) Explain the distinction between...

Think of two examples of your own which illustrate how credibility can be affected by vested interest or bias. (You may fi nd it helpful to think of internet sites.)

Explain the distinction between direct and circumstantial evidence in the case of the claim that aliens have visited Earth in a spaceship.