“This cloth is a parachute,” Brian said to his younger sister. “Here, let’s jump off the sofa and parachute to earth.” Brian and his sister were engaging in ________

An important difference between theories and hypotheses is that

A) theories do not allow prediction of future behavior and events. B) hypotheses can be tested and directly verified. C) theories are specific, while hypotheses are general. D) theories are only valid during the historical period in which they were created.

Mixed features in bipolar I disorder involve

a. both mood and anxiety symptoms. b. mania with symptoms of depression that do not rise to the level of a major depressive episode. c. depression with symptoms of mania that do not rise to the level of a manic episode. d. neurotransmitter cycling.