Experiment- a research method in which an investigator manipulates one or more factors (independent variables) to observe their effect on some behavior or mental process (the dependent variable)-by random assignment of participants the experiment controls other relevant factors Independent variable- the experimental factor that is manipulated; the variable whose effect is being studied Dependent variable- the experimental factor that is being measured; in psychology it is usually a behavior or mental process; may change in response to manipulations of the independent variable Experimental condition- the condition of an experiment that exposes participants to the treatment, that is, to one version of the independent variable Control Condition- the condition of a experiment that contrasts with the experimental treatment; serves as a comparison for evaluating the effect of the treatment Random assignment- assigning participants to experimental and control conditions by chance; minimizes preexisting differences between those assigned to the different groups
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This note was uploaded on 04/20/2008 for the course PSYCH 101 taught by Professor Wessel-blaski during the Spring '08 term at Wisconsin Colleges.