Sociology 2206A/B Lecture Notes - Lecture 9: Nonprobability Sampling, Sample Size Determination, Sampling Frame

• School: Western University
• Department: Sociology
• Course: Sociology 2206A/B
• Professor: Stephen Lin

Document Summary

Point at which no new themes emerge from the data and sampling is considered complete. A non-random sample in which the researcher selects anyone he or she happens to come across. A nonprobability sample in which the researcher uses a wide range of methods to locate all possible cases of highly specific and difficult to reach population. A nonprobability sample in which units are selected into the sample on the basis of pre-specified characteristics, so that the total sample will have the same distribution of characteristics assumed to exist in the population being studied. A non-probability sampling method in which the initial study participants may be asked to suggest additional people for the study. A large sample without random sampling or with a poor sampling frame is less representative than a smaller one with random sampling and an excellent sampling frame (quantitative research) Good samples for qualitative purposes can be very small.