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Confederate
A confederate in a study refers to an individual who is completely aware of the goals of the experiment. They work with the researcher of the study. The purpose of having a confederate in an experiment (specifically, a social experiment) is to have them manipulate a social situation.
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Social Science
Empirical Science
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Ch.1 Introduction to Psychology - Psychology @ OpenStax
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Ch.2 Psychological Research - Psychology @ OpenStax
Ch.12 Social Psychology - Psychology @ OpenStax
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Hypothesis
Independent Variable
Dependent Variable
Confederate
Basic Two-Group Experimental Design
Random Assignment
A researcher wants to test if a new public speaking workshop reduces anxiety. They measure the anxiety levels of 50 volunteers before they participate in the workshop. A week after the workshop is completed, the researcher measures their anxiety levels again and finds that the average anxiety level has decreased. The researcher concludes the workshop is effective. What is the most significant flaw in this study's design?
Operational Definition
Simple Random Sampling