The type of variable that can contaminate the results of an experiment and may be an alternative to a causal relationship is known as a(n): A. antecedent variable B. criterion variable C. extraneous variable D. predictor variable

Which statement best explains how world war ii to end the great depression? a. new job opportunities opened as the united states produced more military products. b. the u.s. army provided new jobs that paid better than any other work at the time. c. people had to worry more about war problems than about the economic crisis. d. the war caused people to trust the economy enough to spend more money.