Dr. gao is designing a new study for his psychology advisees to conduct this year. he has chosen american adult males over age 50 as the or overall group he is interested in exploring. he and his students will have to determine how to pick a sample from this larger group.

What would a student most likely use if he or she wanted to consult a secondary source

Which choice best describes how your answer compares to the sample

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.