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    Experiments vs. correlations

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    Psychological research includes two major methods of investigation: correlational and experimental. define these methods, provide an example of a situation where researchers have used each method, and then share a way in which you could personally create both a correlation and an experiment in relation to your own day to day life.

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    In an experiment, you are testing to see whether changing one variable (called your 'independent variable', or IV) causes a change in another variable (called your 'dependent variable', or DV). To test for this causal link, you must control any other variables that could influence your DV, so that you are sure that any changes in it arise from your changes to the IV.
    Many clinical drug trials use an experimental method. Participants are randomly assigned to take either a sugar pill (placebo) or a real pill (the drug being tested), and are then observed for changes in symptoms. All possible variables that could affect the outcome (age of ...

    Solution Summary

    Explains the difference between experimental and correlational designs, using examples.