Characteristics of Households - Childinfo.org

Table SD.1R: Allocation of Sample Clusters (Primary Sampling Units) to Sampling StrataNumber of households (Census 2002)Number of Sample ClustersTotal Urban Rural Total Urban RuralBelgrade 2723 2469 254 22 17 5Central Serbia without Belgrade 9152 6795 2357 55 35 20Vojvodina 1670 759 911 23 11 12Total 13545 10023 3522 100 63 37Sampling Frame and Selection of ClustersThe frame for Roma settlements was based on informationfrom the 2002 Serbian Population Census. It was formedby excluding all enumeration areas with 17 or less Romahouseholds. In this way 46% of the Roma households wereincluded. The resulting frame with the number of Romahouseholds from the Census data for each enumerationarea was used for the selection of primary sampling units(PSUs). The primary sampling units (PSUs) were selectedfrom each of the sampling strata by using a systematicpps (probability proportional to size) sampling procedure,based on the estimated number of Roma households. Thefirst stage of sampling was thus completed by selecting therequired number of enumeration areas from each of thethree territories, by urban and rural areas separately.Listing ActivitiesSince the sampling frame (the 2002 Population Census) wasnot up-to-date, a new listing of households was conductedin all the sample enumeration areas prior to the selectionof households. For this purpose, listing teams were formed,who visited each enumeration area, and listed the occupiedhouseholds. The Statistical Office of the Republic of Serbiawas responsible for updating the household lists. RegionalOffices formed the teams responsible for listing andfieldwork. For each team, the list of all households in theselected cluster from the Census 2002 was provided. Theinterviewers’ task was to go to the addresses listed and toidentify the current Roma households, together with thenumber of children under five living in the household. Thelisting process was performed during June and July 2010.Selection of HouseholdsUpdated lists of households were prepared by the listingteams in the field for each sample enumeration area andsent to the Statistical Office of the Republic of Serbia.Afterwards, the updated lists of the households in theenumeration areas were classified into two categories:households with children under 5 and householdswithout children. According to the number of listedhouseholds for each category per enumeration areaand the desired sample size of 1300 households withchildren under 5, a different number of householdsto be selected from each category in enumerationareas was determined. The number of householdswith children under 5 per cluster was calculated as13, excluding clusters from Belgrade region where 14households with children under 5 were assigned. Inthe case of clusters with less than 13 (14 for Belgraderegion) updated households with children under 5, allof these households were included in the sample. Thenumber of households without children under 5 wasobtained as the difference between the total numberof sample households per cluster (18) and the numberof households with children under 5 allocated in thecluster. The households from both categories wereselected systematically with equal probabilities. Duringthe data collection, another 15 households (11 withchildren under-5 and 4 households without childrenunder-5) were included in the sample, in the case wheninterviewers identified that two households were livingin the dwelling, instead of only the one listed.262MULTIPLE INDICATOR CLUSTER SURVEY 2010