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Title Details:
Stratified sampling – further topics
Authors: Papageorgiou, Ioulia
Reviewer: Karakostas, Konstantinos
Description:
Abstract:
Stratified sampling is very frequently applied in practice due to the efficiency of the resulting estimators. The implementation of stratified sampling requires the existence of an auxiliary variable (denoted as Z), which ideally is related to the main study variable Y and for which population data are available. The auxiliary variable is used to construct the strata so that the sample selection can then proceed according to the stratified sampling design. Previous surveys or censuses often provide the necessary information for one or more auxiliary variables in the population, making population stratification practically straightforward. The ease of implementation, combined with the favorable properties of the method, make stratified sampling a widely used sampling technique. For this reason, this chapter will address further practical issues that arise during the design and implementation of stratified sampling. Specifically, the topics of further study focus on: (a) the selection of the auxiliary variable to be used as a criterion for dividing the population into strata, (b) the determination of the number of strata, and (c) the construction of strata, especially in the case where the auxiliary variable is continuous. Additionally, a description and study of post-stratification sampling and its characteristics are provided.
Type: Chapter
Creation Date: 2015
Item Details:
License: http://creativecommons.org/licenses/by-nc-sa/3.0/gr
Handle http://hdl.handle.net/11419/1303
Bibliographic Reference: Papageorgiou, I. (2015). Stratified sampling – further topics [Chapter]. In Papageorgiou, I. 2015. Sampling Theory [Undergraduate textbook]. Kallipos, Open Academic Editions. https://hdl.handle.net/11419/1303
Language: Greek
Is Part of: Sampling Theory
Publication Origin: Kallipos, Open Academic Editions