PSYC 8-27 - PSYC 1 Methodology fact population and...

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PSYC 8/27/12 1. Methodology fact: population and samples (continued from Wed 8/22) a. Selecting samples… Monday : 2. Control for expectancy effects and biases: a. Subject expectancy effects: expectations of the subject about the experiment (ex: affects of placebo on subject) b. Observer expectancy effects : expectations of the experimenter about the experiment. 3. Analyze the results: a. Statistics: mathematical aids for summarizing and interpreting data. b. Descriptive statistics: 4. DATA COLLECTION METHODS CONT’D.. : a. Response performance measures: a.i. Ways to quantify subjects’ reaction to a stimulus a.ii. Techniques: a.ii.1. Reaction times : speed of performance, presumably correlated with processing time. a.ii.2. Response accuracy : measure how well a stimulus was perceived. a.ii.3. Other techniques: b. (Psycho)Physiological measures: b.i. How are bodily functions associated to mental or behavioral states? b.i.1. Techniques: b.i.1.a. Electrophysiology-measure electrical activity in brain b.i.1.b.
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