CMST 332 Chapter Notes - Chapter 6: Sample Size Determination, Sampling Frame, Snowball Sampling
4 Nov 2016
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Population & sample: population: consists of all units, ppl/things, possessing the attributes/charac. in which the researcher is interested, sample: subset/portion of a pop. Sampling frame: set of ppl that have chance to be selected. Identify the population: before sample can be selected, pop. must be identified, must be @ least 1 common charac. among pop. members, must reflect entire pop, must be related to research question/hyp, availability/access. Format for collecting data affects who will participate. Addressing generalizability: generalizability: extent to which conc. developed from data collected from a sample can be extended to the pop, representativeness= goal in selecting sample. All elements have same chance for being selected/inc. Can only be assured thru random sampling: replication: basing study on oth studies that have investigated same topic. Literal replication: research study can repeat exact procedures of prev. study. Operational replication: attempt to reconstruct procedures used prev.
