Mark has always wanted to try marijuana but knows his parents and coaches will disagree. He decides that his ability to try something new is not as important as remaining guilt-free and therefore chooses not to take the drug

Simply expecting something to happen can make it happen. This describes ________.

A. experimenter bias B. observer bias C. participant bias D. placebo effect

Michele openly lives her life as a lesbian. Statistics indicate that Michele

A) probably lives in a small town. B) is most likely a high school dropout. C) probably has a college degree. D) is most likely over 50 years old.