Mrs. Gardner is using a peer support strategy to motivate her students to behave more appropriately. Students have been asked to watch their classmates and catch them being good. Mrs. Gardner praises students who have noticed positive behavior. Which of the following strategies is she using?
a) positive peer reporting
b) peer tutoring
c) peer monitoring
d) peer support and confrontation

Martha participates in a research study in order to receive extra credit for her psychology class. when she arrives in the research office she is given a can of what looks and tastes like beer, but which actually contains no alcohol. in the adjoining room martha's classmate karen is also participating in the study. karen receives a can of alcoholic beer. if the experiment was designed to test the effects of alcohol on concentration, then who is exposed to the independent variable?