PSYC 201W Chapter Notes - Chapter 5: Simple Linear Regression, Partial Correlation, Causal Model
30 Apr 2017
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Document Summary
Correlational research: when scientists conduct correlational research, their ultimate goal is to, understand potential cause-effect relations. In psychology, correlational research most often examines the following three possible sources of associations: x and y are characteristics of the same people. In real research, data usually not straightforward: statistics and graphs help us identify correlations. Interpreting the strength of a correlation: cohen provides set of guidelines for judging whether associations between variables are of, small, medium, large, cohen proposes that absolute values of pearson"s r of: Correlation does not establish causation: reasons why, bidirectionality problem, the third-variable problem. The third-variable problem: even when we can rule out the bidirectionality problem, to reasonably conclude that. Can we gain a clearer causal picture: scientists who conduct correlational studies often attempt to reduce the causal ambiguity that accompanies the correlational method through, statistical analyses, research designs.
