Psyc 103 Lecture 2

Psyc 103 Lecture 2 - Psyc 103 Lecture 2 Research...

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Psyc 103 Lecture 2 01/10/2007 15:06:00 Research Correlational: statistical evaluation Descriptive: observational in nature Experimental manipulated variable (IV); random assignment of subjects to  “conditions” o Used to find the cause o Independent variable (IV): manipulated to determine its causal effect  on the dependent variable o Dependent (DV): What is measured; it is affected by the independent  variable, must be a  behavior o Operational definition: precise description of how variables (DVs) will  be observed and measured What is fear? In rats? They freeze and defecate. In humans?  Body position o Experimental group: receives a treatment o Control group: receives NO treatment o RANDOM ASSIGNMENT to conditions is essential! o Example: A Research Question Does using the study guide cause one to perform (measurably)  better in Psychology 103? Those want to do better in the class, are likely to 
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This note was uploaded on 04/15/2008 for the course PSYC 103 taught by Professor Pearlberg during the Fall '07 term at UCSD.

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Psyc 103 Lecture 2 - Psyc 103 Lecture 2 Research...

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