ZIMBABWE ELECTION SUPPORT NETWORK
The table below shows the number of actual
interviews conducted for each province.
People-to-list
The sample was based on the projected population of
adult Zimbabweans aged 18 plus (see table 2
below), that is the voting population up to 2018. The
2012 population census data was used as the base
population to project the 2018 voting population.
The survey sample was designed to be representative
of Zimbabwe and is stratified by urban and rural
strata, province and district. The sample was
allocated using PPS; the measure of size being the
2018 18+ projected population of provinces.
Table 3: Number of interviews conducted
Province
Bulawayo
Harare
Manicaland
Mash Central
Mash East
Mash West
Masvingo
Mat North
Mat South
Midlands
Total
PPS was also used to select enumeration areas
(EAs) from Zimbabwe Sampling Frame (developed
after the 2012 census). The measure of size for EAs
during selection was number of persons as per the
projected population census. The table below
outlines the allocation of enumeration areas for the
10 provinces.
Urban EAs
11
5
1
3
6
1
1
7
2
34
71
Rural EAs
0
19
16
17
16
9
9
16
18
2
122
Sampled
Individuals
90
300
191
138
168
150
170
60
81
170
1,518
% Sampled
Individuals
6
20
13
9
11
10
11
4
5
11
100
Primary sampling units (PSU)
At the first stage the sampling frame is made up of
EAs. EAs are the smallest geographical units that
consist of about 100 households. Each EA has a
unique 10-digit geo-code that reflects the province,
district, ward and land use sector in which it is
located. For the purpose of survey, the sampling
frame excludes non-household population, people
residing on state land (national parks, safari areas,
etc.) and in institutions, and these account for less
than one percent of the population.
Table 2: Allocation of Enumeration Areas
Province
Bulawayo
Manicaland
Mash Central
Mash East
Mash West
Mat North
Mat South
Midlands
Masvingo
Harare
Total
%
Registrants
5
16
13
9
11
11
11
6
5
13
100
Total
11
24
17
20
22
10
10
23
20
36
193
Secondary sampling units (SSU)
Two approaches were considered. The first one
requires that, prior to every survey, a list of
households in the selected EAs is established. This is
used as the frame for the second stage systematic
selection of households. However, because, there
was no list of households for this stage of sapling,
Systematic Random Sampling was used to select 8
households in each EA. The enumerators used a
5/8 interval to randomly select households in the
urban areas. This entailed skipping the 5households,
with counting starting from the right for the first
house and the second house the enumerators would
skip 8 households. In the rural areas because of
distance and that the households are not linear, the
enumerators skipped every 3rd house. Respondents
were selected using simple random sampling or
lucky draw.
193 enumeration areas across the country were
selected at random. For each sampled enumeration
area, enumerators were instructed to identify eight
individuals for the people-to-list using the lucky
draw method. For the people-to-list enumerators
were instructed to identify 50% female and 50%
male respondents. In total, the people-to-list
sample should have included 1,544 respondents of
whom 722 were women and 722 were men. In
reality, the enumerators were able to conduct a total
of 1,518 interviews for the people-to list test of
which 55% of the respondents were women and
45% were men.
15
FINAL REPORT OF THE 2018 VOTERS' ROLL AUDIT
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