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RFC1 part 4

Qualitative Research chapter 14-chapter 18

Types of Qualitative Narrative, Ethnographic, Case studies,etc.
Criterion Picking all cases that meet some criterion, such as all children abused in a treatment facility. Quality assurance.
purposeful A type of non-random sample in which respondents are specifically sought out. Contrasts with random and convenience samples. A special type of purposive sample is the maximum variation sample.
maximum variation sampling Also called a maximum diversity sampling. A type of purposive sampling in which respondents are chosen to be as different as possible from one another.
intensity Information-rich cases that manifest the phenomenon intensely, but not extremely, such as good students/poor students, above average/below average.
homogeneous Focuses, reduces variation, simplifies analysis, facilitates group interviewing.
snowball Identifies cases of interest from people who know people who know people who know what cases are information-rich, that is, good examples for study, good interview subjects.
random purposive (still small sample size) Adds credibility to sample when potential purposeful sample is larger than one can handle. Reduces judgment within a purposeful category. (Not for generalizations or representativeness.)
critical case Permits logical generalization and maximum application of information to other cases because if it's true of this once case it's likely to be true of all other cases.
typical case Illustrates or highlights what is typical, normal, average.
Extreme case Learning from highly unusual manifestations of the phenomenon of interest, such as outstanding success/notable failures, top of the class/dropouts, exotic events, crises.
Negative case (cases which go against your expectation, not necessarily giving negative views on a subject
opportunistic Following new leads during fieldwork, taking advantage of the unexpected, flexibility.
Created by: hday