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10 Cards in this Set
- Front
- Back
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Dependent variable
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The characteristic that is measured. The experiment has no control over the variable.
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Independent variable?
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The treatment,or the characteristics that is believed to make a difference.
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Internal Validity
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Determines if the difference in the dependent variable are the direct result of the independent variable.
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External Validity
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Determines if the results are generalized to groups outside the experimental settings.
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History (Research section)
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Affects performance on the affects performance on theindependent variable during the time of treatment. But its not the independent variable.
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Maturation
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The physical or mental changes that occur within subjects over time.
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Testing
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Improved results on the post-test as result of the subject having taken the pre-test.
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Instrumentation
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Results from a problem with the instrument used for assessment: changes in the measuring device or procedure over the course of study.
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Statistical Regression
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Tendency for scores to regress toward the mean.
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Mortality
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Occurs when subjects drops out of the study.
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