Dr. mason observes that the students in her class who read both the test and visual aid presentations tend to perform better on her exams than the students who simply read the text or visual aids alone. dr mason's observation best depicts which goal of psychology?

Which of the following situations best demonstrates the principle of separation of powers in the u.s. government? a. the president can veto laws passed by the legislature. b. the courts must approve constitutional amendments. c. states create their own educational policies. d. members of the legislature are elected by voters.