Even though the number has declined over the past 40 years, coronary heart disease remains the leading cause of death in the United States, responsible for _____ of all deaths

In comparison to boys, girls with ADHD are more likely to display ____

a. higher levels of hyperactivity b. greater impairment in executive functions c. higher levels of aggression d. inattentive/disorganized symptoms

What refers to how well a study is conducted, including the avoidance of confounding variables?

A. internal validity B. external validity C. reliability D. generalizability

Collins and Quillian's semantic network model predicts that the reaction time to verify "a canary is a bird" is the reaction time to verify "an ostrich is a bird."

a. interfered with by b. faster than c. the same as d. slower than

A stage of moral development in which the morality of an action is determined by a set of general principles that reflect core values is called the _____ stage.

A) postconventional B) conventional C) formal conventional D) preconventional