Educational Research Chapter 5
Terms
undefined, object
copy deck
- probability sampling
- a random method of selection in which the researcher knows the probability of selection from a population
- purposeful sampling
- an intentional method of selection in which the researcher selects particular individuals because they will be especially informative
- simple random sampling
- each member of the sampling has the same probability of being selected
- systematic sampling
- every nth member of the population is selected
- stratified sampling
- population is divided into subgroups, then subjects are selected from subgroups using simple random or systematic procedures
- proportional stratified sampling
- number of subjects in each strata reflects proportion in population
- disproportional stratified sampling
- number of subjects in each strata does not reflect proportion in population
- cluster sampling
- random selection of naturally occuring groups (universities, schools, classrooms, city blocks, households)
- nonprobability sampling
- probability of selection unknown
- convenience sampling
- a group of subjects selected based on availability
- quota sampling
- nonrandom sampling representative of a target population
- maximum variation sampling
- subjects are selected from both ends of a continuum to represent extreme cases