Class Notes SOC 2101
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This 2 page Class Notes was uploaded by Caroline Welch on Friday February 20, 2015. The Class Notes belongs to SOC 2101 at George Washington University taught by Antwan Jones in Spring2015. Since its upload, it has received 100 views. For similar materials see Social Research Methods in Sociology at George Washington University.
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Date Created: 02/20/15
2119 chapter 7 the logic of sampling Sampling nonprobability Sampling the process of selection observations Nonprobability sampling any technique in which samples are selected in some ways not suggested by probability 0 O theory Available subjects Same as convenience sampling Does not allow for control over representativeness Only justi ed if less risky methods are unavailable if possible try and nd ways to sample populations that allow for the sample to be representative of the population Researchers must be very cautious about generalizing when this method is used If looking at average GPA use the classroom from a pool you can sample from did not end up in this classroom by chance therefore the reasons you chose the class is not random so it is not probabilistic might have chosen all sociology majors but they are not the only majors at GW Example of recent research article that uses convenient as sampling technique even though there is some biased too it it can still be published 27 participants hand selected form a hosptal Purposive sampling A type of nonprobability sampling in which the units to be observed are selected on the basis of the researchers judgment about which ones will be the most useful or representative Using experts in the eld to gure out who should be a part of the sample Small subsets of a population Two group comparison Deviant cases want normative experience and average the range of individuals Getting information about who should be in the sample with some other criteria Snowball sampling A nonprobability sampling method whereby each person interview may be asked to suggest additional people for interviewing Often used in eld research special population 0 Ask a gang member for other gang members a Representative sample Quota sampling Random not using probability
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