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Unformatted text preview: 1-31-08Hypothesis: Is my theory valid?To test the hypothesis, we need to gather evidenceThe best method to test a hypothesis is with an experimentExperimental Methods:Independent variable what the experimenter manipulatesDependent variable the data we recordControl variable variables which are held constantConfounding variable an outside source which may affect your experimentProblems with experimentation:Are experiments ecologically valid?Can we experiment with children in real life?Alternative: Natural experiment - to compare naturally occurring groups of peopleCorrelation Studies:The researcher gathers information on already existing groups of individuals without changing their experiences in any wayCorrelation coefficient roStrength of the relationshipoDirection of the relationshipLimitations:oInability to determine cause and effect relationshipsoCorrelation is not causation, but is a good hintSystematic Observation:Naturalistic observation in the field or in a natural environment where behavior...
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This note was uploaded on 04/09/2008 for the course PSY 203 taught by Professor Gianico during the Spring '08 term at SUNY Albany.
- Spring '08