Field substitutions in Slovene public opinion surveyVehovar, Vasja (Avtor) Slovene Public Opinion Poleconducting an opinion pollmethodologyWe talk about field substitutions when a non-responding unit is replaced with a substitute (reserve) unit in the field-work stage of the survey process. Thecase of the Slovene Public Opinion (SJM) survey serves as a starting point for bringing the issue of substitutions into the broader context of missing data problems. In empirical evaluation the substitution procedure is compared with the alternative weighting adjustment. The main finding is that the advantages of the substitution procedure can hardly compensate for its serious drawbacks. Specifically, the comparable gains in precision are relatively small, at least when a ratio estimator is used for the estimation of the population average. However, the specific setting of the Slovene Public Opinion survey makes the substitutions still a relatively favorable procedure. In any case, the substitution procedure is becoming more and more obsolete as it is relatively inefficient in handling the growing nonresponse problem.19952026-05-11 10:35:38Drugo182414UDK: 316.653COBISS_ID: 16065373OceCobissID: 50055168sl