CRCJ 3001 Lecture Notes - Lecture 6: Snowball Sampling, Quota Sampling, Experiment
5 Apr 2016
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Document Summary
A research strategy is a general approach to research determined by the kind of quesion that the study is hoping to answer. Purpose is to describe variables as they exist. What percentage of canadians support women"s right to choose aborion: correlaional strategy. Simply measures two variables for each individual in order to describe the relaionship between the variables. University gpa is weakly related to parent"s income and strongly related to their achievement scores: experimental strategy. To establish the existence of and demonstrate a cause-and-efect relaionship between 2 variables. An experiment atempts to show that changes in one variable are directly responsible for changes in a second variable. Controls of all other variables: quasi-experimental strategy. Compares groups or condiions but lacks one of the criical components, either manipulaion or control, that is necessary for a true experiment. Typically deines the condiions with a ime variable (pre & post) or with a nominal variable (colour of eyes, gender)
