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Unformatted text preview: Experimental research Experimental research attempts to determine how and why something happens. Experimental research tests the way in which an independent variable (the factor that the scientist manipulates) affects a dependent variable (the factor that the scientist observes). A number of factors can affect the outcome of any type of experimental research. One is finding samples that are random and representative of the population being studied. Another is experimenter bias , in which the researcher's expectations about what should or should not happen in the study sway the results. Still another is controlling for extraneous variables , such as room temperature or noise level, that may interfere with the results of the experiment. Only when the experimenter carefully controls for extraneous variables can she or he draw valid conclusions about...
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This note was uploaded on 11/21/2011 for the course SOCI 101 taught by Professor Staff during the Fall '09 term at Texas State.
- Fall '09