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9-3-08 - Class Notes Psychology 206 Preliminaries Sakai...

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Class Notes - Psychology 206 – 9/3/08 Preliminaries: Sakai going ok? Something new on Sakai Exercise #2 questions? TO DO FOR FRIDAY: - Reading due Wednesday - Reading due Friday - Download the Exercise #3 README file and the worksheet - Download the study guide from Sakai for chapters #1 and #2 You can abbreviate the treatments like this: NO cell 0 pass “ “ 1 pass “ “ 2 pass “ “ 3 pass “” 4 pass Class 02 Activity: Causality No random sampling, but yes, random assignment You can have different independent variable names Causality is warranted because of random assignment (we don’t need to worry about random sampling) “Generic” True Experiment - Randomly assigned to groups (groups have no systematic differences) o Group A gets level 1 of Independent Variable; group B gets level 2 of IV o Measure dependent variable o Hold everything else constant (eliminate the effects of confounding variables)
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