February 4 - Intro to Social Psych February 4, 2008...

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Intro to Social Psych February 4, 2008 Research Methods Continued… 1. Background Issues for Research methods a. Design: Experimental vs. Correlational – b. Validity: Internal vs. external c. Measurement Issues i. Operationalization ii. Manipulation Checks iii. Reliability – Will it change over time? May or may not be important. Ex. Expect personality traits to be consistent across time. 2. Research methods: Pro’s and Con’s a. Laboratory – Studies completed in a controlled environment in which subjects are signed up, reported to lab and following instructions of person there. Typically thought of as an experiment. Random assignment to independent variable. Environment is controlled. Very high in internal validity because of control of independent variable and random assignment. But subjects know they are being evaluated, which can act as threat to lab study in external validity. Behaviors in question may not be naturally occurring because they know they are being evaluated. External validity can be
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February 4 - Intro to Social Psych February 4, 2008...

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