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Methodology

Public opinion research centre perform surveys via trained external interviewers. Interviewer network is allocated into 200 fieldwork areas in whole Slovak republic, which guarantee representativeness by municipality size and region to overall Slovak surveys. Different populations and sample ranges are used in accordance with given research projects. Main sampling methods used in Public opinion research centre are quota sampling with randomization in last step and random sampling. Preferred data collection method is questionnaire-based interview. Collected data are gathered by postal service or telephonically. Examined questionnaires are scanned and are statistically processed upon in-depth data verification and analysis of representativeness of the sample are complete. Publications, articles and information for press, which are published by Statistical office of Slovak republic in publication group ? Other publications (Opinions ? Information Bulletin on Public Opinion Research; Customer barometer; Hidden economy in informal sector; Public opinions on problems related to drugs prevalence; Cyclical surveys) or on internet are composed on the basis of acquired results.

Detailed information about methodology for each single project

  • Customer Barometer survey
  • Vacations and business trips survey
  • Hidden economy in informal sector
  • Drug addiction
  • Actual social events

Customer Barometer

Data collection method

Questionnaire-based interview.

Population

4 416 076 inhabitants of Slovak republic aged 16 and more

Sample range

1 200

Sampling method

Quota sampling with randomization in the last step.

Sampling indicators

Sex, age, education, nationality, municipality size and region.

Periodicity

Monthly

Fieldwork period

First decade of month.

Season-reflecting

Software Dainties, season reflecting data are used in international comparation.

Distribution form

Information on internet, Cyclical surveys - published monthly, Customer barometer ? published quarterly

Distribution

Statistical office of Slovak republic, Information office, Miletičova 3, 824 67 Bratislava

Contact person

Elena Šťavová

Telephone

+ 421/ 2/ 50236 341

Fax

+ 421/ 2/ 55561 361

E-mail

peter.heidinger@statistics.sk ; elena.stavova@statistics.sk

Vacations and business trips survey

Data collection method

Questionnaire-based interview.

Population

4 494 872 inhabitants of Slovak republic aged 15 and more

Sample range

1 200

Sampling method

Quota sampling with randomization in the last step.

Sampling indicators

Sex, age, education, nationality, municipality size and region.

Periodicity

Quarterly

Fieldwork period

Second ? third decade of January, April, July and October

Season-reflecting

Data are not seasonally reflecting.

Distribution form

Information in Statistical office of Slovak republic Bulletin ? published monthly.

Distribution

Statistical office of Slovak republic, Information office, Miletičova 3, 824 67 Bratislava

Contact person

Elena Šťavová

Telephone

+ 421/ 2/ 50236 341

Fax

+ 421/ 2/ 55561 361

E-mail

peter.heidinger@statistics.sk ; elena.stavova@statistics.sk

Hidden economy in informal sector

Data collection method

Questionnaire-based interview.

Population

4 185271 inhabitants of Slovak republic aged 18 and more

Sample range

1 400

Sampling method

Quota sampling with randomization in the last step.

Sampling indicators

Sex, age, education, nationality, municipality size and region.

Periodicity

Annually

Fieldwork period

Second ? third decade of June

Season-reflecting

Data are not seasonally reflecting.

Distribution form

Publication - Hidden economy in informal sector.

Distribution

Statistical office of Slovak republic, Information office, Miletičova 3, 824 67 Bratislava

Contact person

Elena Šťavová

Telephone

+ 421/ 2/ 50236 341

Fax

+ 421/ 2/ 55561 361

E-mail

peter.heidinger@statistics.sk ; elena.stavova@statistics.sk

Drug-taking prevalence in Slovak republic

Data collection method

Questionnaire-based interview.

Population A
Population B
Population C
Population D
Population E

4 255 128 inhabitants of Slovak republic aged 18 and more.
1 327 275 young inhabitants of Slovak republic aged from 15 to 29.
101 969 young inhabitants of Bratislava aged from 15 to 29.
3 862 234 inhabitants of Slovak republic aged from 15 to 64.
4 494 872 inhabitants of Slovak republic aged 15 and more.

Sample range A
Sample range B
Sample range C
Sample range D
Sample range E

1 515
900
300
1 375
1 600

Sampling method

Quota sampling with randomization in the last step.

Sampling indicators

Sex, age, education, nationality, municipality size and region.

Periodicity

Once per two years period.

Fieldwork period

October - November in even year.

Season-reflecting

Data are not seasonally reflecting.

Distribution form

Publication ? Drug-taking prevalence in Slovak republic and public opinions on problems related to drug addiction.

Distribution

Statistical office of Slovak republic, Information office, Miletičova 3, 824 67 Bratislava

Contact person

Elena Šťavová

Telephone

+ 421/ 2/ 50236 341

Fax

+ 421/ 2/ 55561 361

E-mail

peter.heidinger@statistics.sk ; elena.stavova@statistics.sk

Actual social events

Data collection method

Questionnaire-based interview.

Population

4 255 128 inhabitants of Slovak republic aged 18 and more.

Sample range

1 156

Sampling method

Quota sampling with randomization in the last step.

Sampling indicators

Sex, age, education, nationality, municipality size and region.

Periodicity

Monthly

Fieldwork period

First decade of month.

Season-reflecting

Data are not seasonally reflecting.

Distribution form

Internet site www.statistics.sk

Distribution

Statistical office of Slovak republic, Information office, Miletičova 3, 824 67 Bratislava

Contact person

Elena Šťavová

Telephone

+ 421/ 2/ 50236 341

Fax

+ 421/ 2/ 55561 361

E-mail

peter.heidinger@statistics.sk ; elena.stavova@statistics.sk



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