In a study of aggression in children, a researcher has his undergraduate research assistants watch a group of children on the playground, and record the number of instances of physical or verbal attacks. Which category of measured variable is this researcher using?a) self-report measures
b) observational measures
c) physiological measures
d) neuropsychological measures

The tea party movement is a. an official third party that challenges both democrats and republicans in national elections. b. an organized challenge to incumbents in the republican party by the most conservative wing of the republican party. c. an organized challenge to incumbents in the democratic party by the most liberal wing of the democratic party. d. an offspring of the green party that runs for state and local office in many midwestern states. e. the now defunct party that gave way to the republican party at the end of the “second party system.”

Which graph shows the temporary relationship between the aggregate price level and the aggregate quantity supplied? a. long-run aggregate supply curve b. aggregate demand curve c. short-run aggregate supply curve d. point of equilibrium

Danilo has been working for metropolitan taxi for three months. he expected that his job would be to drive around the city, pick up fares, and drop them off at their desired locations, but in his first few days on the job he realized that the job entails much more. he must keep his taxi cab clean and neat, and some days he will be stationed at the shop and go to people's houses to pick them up and bring them to the local airport. within a few months, he has learned that taxi drivers often express frustration with the people they call "civilians"—that is, non–taxi drivers, whose driving skills they complain about incessantly. in his first few months on the job, describes what danilo is undergoing.