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Details Title: Sociology 7 Description: Sampling Total Flash Cards: 16 Created: 02/28/2007 19:12:10	To study from this set of flash cards, or to create your own your own study flash cards, register HERE. If you are already a registered user, CLICK HERE.
Cards Term sampling Definition collecting info and drawing inferences from a smaller pool Term Convienience sample Definition using subjects that are easily available Term Purposive or Judgemental Sampling Definition Sample based upon knowledge of population, its elements, purposes of the study Term Snowball sample Definition used when members of a population are difficult to locate Term Quota Sampling Definition used to ensure generalizability when researcher has some knowledge of population and its characteristics Term probability sample Definition a sample that gives every member of the population a known (nonzero) chance of inclusion Term Logic of Probability sampling Definition 1. Sample reflects population accurately because everyone has equal chance of inclusion, 2. Sample size increases, sample becomes more representative Term representativeness Definition having the same distribution of characteristics as its population Term Sampling error Definition degree of error to be expected of a given sample design Term element Definition unit, information is collected about the element and provides basis of analysis Term population Definition largest group you can define, "theoretically specified aggregation of study elements" Term sampling frame Definition list or uasi list of units composing a population from which sample is selected (i.e. class roster, prison list) Term simple random sampling Definition every person given equal chance of inclusion Term Systematic Random smapling Definition after first element has been selected, every nth member from a list Term Stratified random sampling Definition divide population into group, take random sample from each Term Cluster sampling Definition Natural groups sampled, each group within population sampled, groups themselves treated as unit of analysis