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8 Cards in this Set
- Front
- Back
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Strengths of True Experiments
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Eliminate individual differences
Eliminate other kinds of confounds Pull researchers into the laboratory Allow researchers to observe the invisible Provide information about interactions Minimize noise |
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Manipulation
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Systematically varying the level of an independent variable in an experiment, with the goal of seeing whether doing so has any effect on the measured level of a dependent variable.
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Random assignment
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A technique for assinging participants to different conditions in an experiment. It means that every person in the study has an equal chance of being assigned to any of the conditions in the study.
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Matching
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A method of assigning participants to experimental conditions. Researchers who use this try to identify similar individuals in order to place them in different conditions.
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Noise
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An extraneous variable in an experiment that influences the dependent variable but that is evenly distributed across experimental conditions. No a threat to validity, but it may decrease a researchers ability to detect the effect in which he or she is more interested.
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Mundane realism
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the degree to which the physical setting in an experiment is similar to the real world settings in which the experimenters independent and dependent variables are most likely to operate.
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Experimental realism
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The method by which levels of one or more independent variables are systematically manipulated or measured in order to gauge their effects on one or more dependent variables.
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Manipulation check
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A measure taken to see if participants in different experimental conditions truly experienced the different levels of the independent variable that the researcher hoped to manipulate.
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