The tendency for people to persist in failing investments to avert loss, which causes losses to mount, is known as the

Whose theory of geologic change contributed to Darwin's Theory of Evolution?

a. Charles Lyell. b. Thomas Malthus. c. Gregor Mendel. d. Alfred Wallace.

Intelligence, social class, occupation, and education are all positively related, but the direction of

causation among these variables is not clear. Indicate whether the statement is true or false