PSY 2012 Lecture Notes - Lecture 3: Harry Harlow, Blind Experiment
7 Dec 2016
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Document Summary
Example: the degree of obesity (a) rises 2% for each hour of television viewed (by those aged 12 to 17. Tv watching may result in less exercise and more snacking (a causes b). Obesity may lead children to prefer more sedentary activities, such as tv viewing (b causes a). Parents having little formal education may not emphasize good nutrition or good use of leisure time(c causes a and b): quasi-experiment. Can be done in the real world greater generality. Difficult position to assert cause and effect: experiment. Procedure in which the experimenter manipulates one variable (iv) and looks at the effect on a second variable (dv). Manipulation: the experimenter is responsible for creating the circumstances. Control: ensuring the conditions are the same except for the iv. Experimental (the extent to which the participants in the study are engaged in the experiment. To them it becomes real) vs mundane realism (the extent in which the situation resembles the real world)
