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Chapter 1: Intro to Social Psychology. Part 3: Wed. Jan 22, 2014. Random assignment (RA) – into groups eliminate other possible explanations for results How is it different from random sampling (RS)…? Experimental Methods : About 3/4ths of Social Psych research. How are these used?.
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Chapter 1: Intro to Social Psychology Part 3: Wed. Jan 22, 2014
Random assignment (RA)– into groups • eliminate other possible explanations for results How is it different from random sampling (RS)…? • Experimental Methods: • About 3/4ths of Social Psych research. • How are these used?
Less often, social psych uses correlational studies • What is examined? • 2 distinguishing factors of true experiments: (Table 1.1) • 1. Control & manipulation of variables • 2. Random assignment to groups – • What is its benefit?
Example of a social psych experiment – • In experiments, use IVs and DVs • Independent variables (IV): what is manipulated • Example? • Dependent variables (DV): observed to determine impact of IV • Example?
Example of a correlational study? • Independent variable? • Dependent variable? • Cause-effect information? Possible confounds?
External validity – questions related to whether results will generalize • Depends on: • Mundane realism & Experimental realism • (p. 27 in text)
Ethics & Deception • IRB protects participants • How? • Types of deception: • 1) False Purpose • 2) False Feedback • 3) Use of a confederate/actor • Benefits of deception? • Ethical concerns?