Political Context of North Macedonia
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Detailed Methodology
The survey was conducted on behalf of International Republican Institute's Center for Insights in Survey
Research by Brima market research firm.
Data was collected from January 30 to February 10, 2020, through face-to-face interviews using TAPI
(Tablet Assisted Personal Interviewing), in the home of the respondent by trained interviewers.
A sample of 1,222 respondents age 18 and over was surveyed. The margin of error was plus or minus 2.8
percent at the midrange of the 95 percent confidence level. The response rate was 73 percent.
The sample is nationally representative of the adult 18+ population by age, gender, region, urbanicity and
ethnicity. The design is based on State Statistical Office (SSO) estimates for December 31, 2018. Estimates
for ethnicity are based on the 2002 Census.
A stratified multistage probability sampling method was used, with stratification based on three stages:
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Stages 1: Probability proportionate to size (PPS) into eight regions, by urbanicity and ethnicity
(Macedonian/Others and Albanian).
Stage 2: Allocation of number of primary sampling units (PSUs) by municipalities within each
stratum, taking municipal population size into account.
Stage 3: Random selection of actual PSUs within municipalities.
The "next birthday method" was used to select respondents, in combination with an ethnic quota.
The data was weighted for age, gender, region and ethnicity. Age, gender and regional weights correspond
to the 2018 SSO estimates. The ethnicity weight factor corresponds to the 2002 Census.
Figures in charts and tables may not add up to 100 percent due to rounding. All sub-group bases cited in
this presentation are weighted.
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This poll was conducted with support from the National Endowment for Democracy.View entire presentation