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10 Cards in this Set
- Front
- Back
Random Assignment
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Researcher's assignment of participation to groups by chance, to reduce the likelihood that an experiment's results will be due to preexisting differences between groups.
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Confederate
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A person who is given a role to play in a study so that the social context can be manipulated.
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Dependent variable
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The outcome- the factor that can change in an experiment in response to changes in the independent variable.
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Control group
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The participants in an experiment who are as much like the experimental group as possible and who are treated in every way like the experimental group except for a manipulated factor, the independent variable.
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Validity
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The soundness of the conclusions that a researcher draws from an experiment.
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External validity
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The degree to which an experimental design actually reflects the real-world issues it is supposed to address.
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Independent variable
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A manipulated experimental factor, the variable that the experimenter changes to see what its effects are.
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Experimental group
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The participants is an experiment who receive the drug or other treatment under study- that is, those who are exposed to the change that the independent variable represents.
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Internal validity
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The degree to which changes in the dependent variable are due to the manipulation of the independent variable.
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Placebo effect
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The situation where participants' expectations, rather than the experimental treatment, produce an experimental outcome.
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