In a mental rotation experiment:. a. accuracy decreases as degree of rotation increases at all degrees of rotation. b. accuracy decreases as degree of rotation decreases up to 180 degrees. c. reaction time increases as degree of rotation increases up to 180 degrees. d. reaction time decreases as degree of rotation increases up to 180 degrees.

Which statement is a good description of a model? a) models are a description of nature based only on one or two variables. b) models are testable ideas but they are not very to most people. c) models are a description of nature that predicts more accurately than real events. d) models are an approximiation of a real system that omits all but most essential variables in a system.