The psychodynamic model views anxiety as a. a danger signal that repressed conflicts are threatening to surface b. a learned reaction c. the result of illogical, irrational, thought processes d. linked to an imbalance in several neurotransmitters in the nervous system

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.