PSYCH 2300 Chapter Notes - Chapter 2: Effect Size, Review Article, Google Scholar
19 Aug 2016
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Sources of information: why research is best and how to find it. Your experience: experience has no comparison group. A group in an experiment whose level on the independent variable differs from those of the treatment group in some intended and meaningful way. Basing conclusions on personal experience is problematic because life often does not offer a comparison group: experience is confounded. A general term for potential alternative explanation for a research finding. Occurs when one thing caused an outcome but in fact other things changed too. In lab use careful controls to make sure only one variable changed at a time: research is better than experience. An actor who is directed by the researcher to play a specific role in a research study. In controlled study, scientist can set up conditions. Researcher has privileged view from outside where all comparison groups can be seen (controls for compounds as well: research is probabilistic.
