Sampling

non-probability sampling Correct Answers Any technique in which samples are selected in some way not suggested by probability theory examples of non-probability sampling Correct Answers Examples include reliance on subjects at hand, purposive (judgmental), quota, and snowball sampling Purposive/judgmental sampling Correct Answers A type of non probability sampling in which the units to be measured are selected on the basis of the researcher's judgment about which ones will be most useful or representative example of purposive sampling Correct Answers you want to study convicts so you study prison inmates snowball sampling Correct Answers a type of non probability sampling, often employed in field research, whereby each person interviewed may be asked to suggest additional people for interviewing quota sampling Correct Answers a type of non probability sampling in which unites are selected into a 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 example of quota sampling Correct Answers studies on presidency with equal men and women of the same age groups informant Correct Answers someone well invested in the social phenomenon that you wish to study and who is willing to tell you what he or she knows about it; not a respondent Probability Sampling Correct Answers the general term for samples selected in accord with probability theory, typically involving some random-selection mechanism