Slide 1Research Process steps (cont.)Experiment ExamplesSlide 4Slide 5Advantages of Correlational vs. Experimental ResearchStep 4: Interpreting resultsSlide 8Chapter 2Research ProcessPart 2: Aug. 31, 2011Research Process steps (cont.)•Random sampling and random assignment–RS:–RA:–Results of random sampling example:–Results of random assignment example:Experiment Examples–From book, Greitemeyer (2009) “song lyrics and helping”•Manipulation?•Results?–(not in book), Schneider et al (2001) “harassment and heart rate”•Manipulation?•Results?•The Correlational Method: determines if two variables are related–Correlation coefficient: Positive, negative, or no correlation?•Cannot make cause-effect conclusions.–Often a third variable can explain relations between 2 variables under study –Example?•Need experiments to determine cause-effect•Experimental Methods: manipulate variables in attempt to examine cause effect•About 3/4ths of Social Psych research.•Most is done in lab settings.•2 distinguishing factors:–1.–2.Advantages of Correlational vs. Experimental Research•Adv of Corr Research:–1)–2)•Adv of Exp Research:–1)–2)Step 4: Interpreting results•Independent variables: what is manipulated–Examples?•Song lyrics study –•Harassment study –•Dependent variables: observed to determine impact of IV–Examples?•Song lyrics study –•Harassment study -•Subject variables: cannot be manipulated–Examples
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