representativeness
representativeness The ability to give a reasonably accurate portrayal of the research subject's characteristics and known diversity. As applied to survey samples, or case-study samples, this is judged by the extent to which key characteristics of the sample are the same as the characteristics of the population from which the sample was selected. In relation to single cases, the criterion would be the typicality of the case selected. The term is also applied to research reports, for example to assess whether verbatim quotations, incidents described in detail, or other selectively reported results reflect the full variety and weight of the results obtained. See also SAMPLING ERROR.
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disruptive selection , disruptive selection Selection that changes the frequency of alleles in a divergent manner, leading to the fixation of alternative alleles in members… Stabilizing Selection , stabilizing selection(maintenance evolution, normalizing selection) Natural selection that selects against extremes at either end of the range of phe… quota sample , quota sample A cheaper alternative to random sampling commonly used in opinion polls, due to their narrow focus on political and other attitudes, and… Select , se·lect / səˈlekt/ • v. [tr.] carefully choose as being the best or most suitable: students must select their own program | [tr.] he has been selecte… Directional Selection , directional selection Natural selection that favours the establishment of one particular advantageous mutation within a population, resulting in a ch… Characteristic , char·ac·ter·is·tic / ˌkariktəˈristik/ • adj. typical of a particular person, place, or thing: large farms are characteristic of this area. • n. 1. a…
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representativeness