Chapter 2 - the methods of social psychology. Study by cohen & nisbett: letter sent to northern & southern usa for job application where the individual explained a murder he committed and why before being refused for it. The study was to measure how cooperative potential employers were w/ the client. Rated how note was sympathetic, encouraging and if it mentioned an appreciation for the candidature. Employers from south complied more w/ request, were warmer and much more sympathetic. Our opinion /b why we behave the way we do can be mistaken. Many influencing factors are hidden from us - unconscious as seen in previous chapter. Hindsight bias: ppl"s tendency to be overconfident /b whether they could have predicted the outcome. Even if you can"t do a study to test smtg, thinking through how you would test it might give you a new hypothesis that you haven"t considered before. Hypothesis: a prediction /b what will happen under particular circumstances.