CRIM 220 Chapter Notes - Chapter 7: Statistical Conclusion Validity, Observer-Expectancy Effect, Design Of Experiments
9 Feb 2017
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Experimentation - approach to research best suited for explanation & evaluation. Research design in most general sense involves deriving strategy for finding out something. Experiment - a process of observation, to be carried out in a situation expressly brought about for that purpose - kaplan (1964) Observe effect of what was done to subjects. Experiments often used in nonscientific human copiously in attempts to develop more generalized understanding about world we live in. We experiment copiously in attempts to develop more generalized understanding about world we live in. Experiments especially well suited to research projects involving relatively well-defined concepts & propositions. Experimentation best suited for hypothesis testing in explanatory/evaluation studies. Can also be appropriate in study of cjs policy. Experiment - specific way of structuring research. Typically takes form of experimental stimulus either present/absent. Essential that both iv & dv operationally defined for purposes of experimentation. Experimental model, dv & iv operationally defined before experiment begins.
