Research Methods

Research Methods - Research Methods General principles of...

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Research Methods General principles of research o Theory – framework of beliefs that generates hypotheses Corroborated or disconfirmed but NEVER proven o Hypothesis – educated guess, expectation of what should occur if theory is true Clear, precise, Testable and falsifiable o Dependent variable (DV) – expected to be changed or influenced by the independent variables, factor you are predicting o Independent variable (IV) thought to influence the change in DV, factor you’re using to predict the DV o Internal validity – extent to which the results of the study (change in the DV) can be attributed to the IV and not other things. IV caused the change in DV Confounds – any factor that makes it unclear to what extent the results can be explained by the IV. Threat to internal validity Ex: passage of time Control group – people similar to the people in the experimental group, except not exposed to the IV
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This note was uploaded on 11/27/2011 for the course PSYC 245 taught by Professor Snyder during the Spring '08 term at UNC.

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Research Methods - Research Methods General principles of...

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