Methodology

Face-to-face interviewing at respondents’ home

Sampling information

Target population

Citizens aged 15+ from:

1. Albania
2. Bosnia and Herzegovina
3. Croatia
4. Kosovo
5. Macedonia
6. Montenegro
7. Serbia

Sampling Frame:

Sampling frame is based on the data from Census, vital statistics and the migrations data, as well as local institutions’ estimates of population and households for 2007

Sample type:

Stratified 3-staged probability sample, with around 100 primary Sampling Units randomly selected on Population Proportional manner with boosted subsamples to better represent certain regions – with post-stratification weighting to reflect true population proportions

1. Polling station territory – approximately size of 200 HH (PPS with probabilities proportional to size)
2. Households by random route technique starting from the given addresses (SRSWoR)
3. Households member with same probability (SRSWoR) – Kish scheme

Sample size

1.	Albania	1,000
2.	Bosnia and Herzegovina	1,000
3.	Croatia	1,000
4.	Kosovo	1,000
5.	Macedonia	1,000
6.	Montenegro	1,000
7.	Serbia	1,000
	TOTAL	7,000

• Respondents per sampling point: 10
• Stratification is done according to
• • Type of settlement – urban/rural
  • Geo-economical regions
• Allocation of the sample by stratums is proportional to size of the stratum (number of persons aged 15+).
• Post stratification regarding: gender, age, type of settlement, geo-economical regions
• Quality control back-checks (in person, by telephone or by post) carried out and documented in a pre-specified form on at least 5% of respondents, 10% of refusals and 10% of non-contacts. Quality control back-checks of respondents involved a short interview with the respondent (whether by telephone or in person).

Date of fieldwork

2008 September 4 – 2008 October 30th

Detailed sample allocation with “boosted” regional oversamples

TOTAL	7000
Serbia	1000
Vojvodina	250
Serbia (rest of)	750
Kosovo	1000
“Serbian” Northern part + enclaves	250
Rest of Kosovo, representative	750
Montenegro	1000
Albanian part (Tuzi + Ulcinj and surrounding)	350
Rest of Montenegro	650
Macedonia	1000
Albanian oversample (North-west part and Skopje)	200
Representative (22% of Albanian population)	800
Bosnia and Herzegovina	1000
Herzegovina (Croat part)	200
West Herzegovina	100
East Herzegovina	100
Republic Srpska	425
RS West	175
RS East	100
RS South	150
Bosnia (Bosniak part)	375
Rest of Bosnia	150
Sarajevo	125
Cazin	100
Albania	1000
North-West (Skhoder)	250
Central part (Tirana and rest)	450
South (Sarande)	300
Croatia (no strata)	1000