PSYC-2400 Chapter Notes - Chapter 2: Canadian Psychological Association, Kurt Lewin, External Validity
9 Dec 2013
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Fundamental principle of social psychology is that many social problems (i. e. , the causes of and reactions to violence) can be studied scientifically. That is where people exaggerate how much they could have predicted an outcome after knowing that it occurred; hindsight is 20/20 . Roese and olson, 1996: study at uwo where students read a story based on ww1 about a young british soldier who devised a plan to save a small village about to be invaded. One group was told that the soldier managed to convince others in the military to accept his plan and the village was saved. One group was told that the soldier"s plan was rejected and the village was destroyed. Both groups thought the outcome was obvious! The trick is to predict what will happen in an experiment before you know how it turns out. Suppose an authority figure asks university students to. In studies conducted by stanley administer near-lethal electric shocks to another student.
