Ex Post Facto Research
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Ex Post Facto Research that has been conducted "_________"
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after the fact
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Ex Post Facto Research:
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Nonexperimental research that looks at relationships between variables, based on data that have already been collected or using all attribute variables
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Role of attribute variables:
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Researchers cannot manipulate attribute variables
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Role of attribute variables:
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Therefore, when examining the effects of one or more attribute variables on experimental outcomes, the research CANNOT be considered a "true experiment" (because the variables were not assigned/manipulated by the researcher)
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Ex post facto research is a ________________ examining how an independent variable, present prior to the study, affects a dependent variable.
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quasi-experimental approach
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Ex post facto research:
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There is something about the participant that we're going to study that we don't have to alter in the participant
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In a true experiment...
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you would assign a random group of participants to the experimental group while assigning the other group of participants to the control.
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Pros of Ex Post Facto research:
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It allows researchers to consider relationships between groups that could not otherwise be examined
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Cons of Ex Post Facto research:
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Does not give the researcher adequate control over the study, which impairs ability to interpret cause and effect relationships
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Cons of Ex Post Facto research:
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The researcher will also have to make sure he/she chooses the correct type of statistical analysis for analysis of outcomes
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attribute variables:
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Something that already exists and can't be manipulated such as eye color or gender
