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Researching Target Markets: Difference between revisions
→Week 12: definition of w:Stratified sampling
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:::'''Nonprobability sampling''' does not meet this criterion and should be used with caution. Nonprobability sampling techniques ''cannot'' be used to infer from the sample to the general population. ( Wikipedia ) | :::'''Nonprobability sampling''' does not meet this criterion and should be used with caution. Nonprobability sampling techniques ''cannot'' be used to infer from the sample to the general population. ( Wikipedia ) | ||
* '''[[w:Systematic sampling|Systematic sampling]]''' is a [[statistics|statistical method]] involving the selection of elements from an ordered [[sampling frame]]. ( Wikipedia ) | * '''[[w:Systematic sampling|Systematic sampling]]''' is a [[w:statistics|statistical method]] involving the selection of elements from an ordered [[w:sampling frame]]. ( Wikipedia ) | ||
* '''[[w:Stratified sampling|Stratified sampling]]''': In [[w:statistical survey|statistical survey]]s, when subpopulations within an overall population vary, it is advantageous to sample each subpopulation (stratum) independently. '''Stratification''' is the process of dividing members of the population into homogeneous subgroups before sampling. ( Wikipedia ) | |||
= Statistical Methods = | = Statistical Methods = | ||