SOCI 2030 Study Guide - Final Guide: Random Assignment, Internal Validity, Time Series
24 Apr 2013
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Experiments are best research design for establishing causality. Causality: variable a causes change for variable b. Experiments are best for establishing causality because it"s the easiest to control. Studies best suited for experimental research are those you can best manipulate the independent variable. Experimental research not suited for studies where you can"t manipulate the independent variable. Experimental research better for looking at small set variable. In an experiment there is 2 groups: 1 experimental & 1 control group: experimental group/treatment. Experimental groups- experiences the modification or stimulus. Whatever modification your giving to the experimental group is called the treatment: control group. Usually the case they don"t know about their other group. Some level of deception is required in deception due to hawthorne effect. Whenever you do an experiment you need to measure dependant variable: pre-test. When you measure the dependant variable before it"s called pre-test: post-test. You measure after the treatment is given.
