__________ are the chemicals that nerves used to communicate

Rejecting the null hypothesis when it is actually false is

a. a Type I error. b. a Type II error. c. more likely with two-tailed tests. d. a correct decision.

Which theory of dreams believes that we dream as a result of threatening wishes and desires being changed into harmless symbols?

a. the activation-synthesis theory c. the extension of waking life theory b. Freud's theory of dreams d. spiritual world theory