TY -
GEN
AU - Lynn, Peter
TI -
The Advantage and Disadvantage of Implicitly Stratified Sampling
KW - Datengewinnung
KW - Stichprobe
KW - Umfrageforschung
KW - standard error
KW - stratified sampling
KW - survey sampling
PY - 2019
N2 - Veröffentlichungsversion
N2 - begutachtet (peer reviewed)
N2 - Explicitly stratified sampling (ESS) and implicitly stratified sampling (ISS) are well-established alternative methods for controlling the distribution of a survey sample in terms of variables that define the strata. If these variables are correlated with survey estimates, the estimates will benefit from improved precision. With ESS, unbiased estimation of the standard errors of survey estimates is possible, provided that sampling strata membership is identified on the survey dataset. With ISS this is not possible and usual practice is to invoke an approximation that tends to result in systematic over-estimation of standard errors. This can be perceived as a disadvantage of ISS. However, this article demonstrates, both theoretically and through a simulation study, that true standard errors can be smaller with ISS and argues that this advantage may be more important than the ability to obtain unbiased estimates of the standard errors. The simulation findings also suggest that the extent of over-estimation with the usual approximate variance estimator may be modest.
UR - http://slubdd.de/katalog?TN_libero_mab2
ER -