Experimental Design Basics TWo kinds of data gathering methodologies observation Cant prove cause effect but can establish associations Hawthorne effect social facilitation Experimental Cause effect Variables of interest- factors vs treatments Independent variable Treatment manipulations of variables of interest Treatment VS control group Dependent variable is what you are measuringExperimental Design Basics „ Two kinds of data gathering methodologies „ Observation „ Can’t prove cause & effect but can establish associations. „ Hawthorne effect, social facilitation „ Experimental „ Cause & effect „ Variables of interest – factors vs. treatments „ Independent variable „ Treatment – manipulations of variables of interest „ Treatment vs. control group „ Dependent variable is what you are measuring