World Values Survey 2001, Wave 4
Tanzania, 2001
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TZA_2001_WVS-W4_v01_M
World Values Survey 2001
Wave 4
| Name | Country code |
|---|---|
| Tanzania | TZA |
Other Household Survey [hh/oth]
World Values Survey Wave 4 1999-2004 covers 41 countries and societies around the world and more than 60,000 respondents. The series includes the following waves:
Wave 6 (2010-2014)
Wave 5 (2005-2009)
Wave 4 (1999-2004)
Wave 3 (1995-1998)
Wave 2 (1990-1994)
Wave 1 (1981-1984)
The World Values Survey (www.worldvaluessurvey.org) is a global network of social scientists studying changing values and their impact on social and political life, led by an international team of scholars, with the WVS association and secretariat headquartered in Stockholm, Sweden.
The survey, which started in 1981, seeks to use the most rigorous, high-quality research designs in each country. The WVS consists of nationally representative surveys conducted in almost 100 countries which contain almost 90 percent of the world’s population, using a common questionnaire. The WVS is the largest non-commercial, cross-national, time series investigation of human beliefs and values ever executed, currently including interviews with almost 400,000 respondents. Moreover the WVS is the only academic study covering the full range of global variations, from very poor to very rich countries, in all of the world’s major cultural zones.
The WVS seeks to help scientists and policy makers understand changes in the beliefs, values and motivations of people throughout the world. Thousands of political scientists, sociologists, social psychologists, anthropologists and economists have used these data to analyze such topics as economic development, democratization, religion, gender equality, social capital, and subjective well-being. These data have also been widely used by government officials, journalists and students, and groups at the World Bank have analyzed the linkages between cultural factors and economic development.
Sample survey data [ssd]
Household
Individual
Version
- v2.1: Edited, anonymous dataset for public distribution.
All deposited data has been made anonymous at the PI side and the archive deposited files have no means to trace the respondents.
2014-04-29
Coverage
National.
National Population, Both sexes,15 and more years.
Producers and sponsors
| Name | Affiliation |
|---|---|
| Mari Harris | Markinor |
Sampling
Sample size: 1171.
The different stages in the sampling procedure were:
- Creation of sample frames of regions districts, wards and cleaned
- Creation of sample frames at ward/village level and cleaned
- Application of table random numbers to pick respondents
- Proportionate-stratified random sampling procedures applied
- Face to face questionnaire filling was then done
- Each respondent unit was cleaned/edited or clarity done by a supervisor
The sampled unit we got from the office sampling was the household combined with named individual and the selection method that was application of table random numbers to locate households obtained at ward (urban areas), village (rural areas) and individuals at office/factories. There were not any quota controls. Substitution was permitted in households: if husband or wife not found in house at times of visit, interview eldest household member beyond 18 years and also substitution was permitted if too many men/women picked, purposively pick more of the opposite sex. The stratification factor that was used: Selecting regions according to income levels (per capita), ethnic concentration, educational levels, Islam vs. Christian areas all to ensure adequate representation.
Remarks about sampling:
- Final numbers of clusters or sapling points: No clusters
- Sample unit from office sampling: Household combined with Named Individual
There were some limitations in the sample. The average rate of responses was between 3% and15% depending on education and occupation types. Also the people in employment had little time and we had to do interviews during the night in some towns.
No weighting variable was added.
Survey instrument
The questionnaire used for Tanzania for the WVS 2001 was the one downloaded from the website titled 1999-2000 World Values Survey Questionnaire, and adapted to the Tanzania operational environment. The WVS questionnaire was translated from the English questionnaire by a member of the research team. The translated questionnaire was not back-translated into English but it was pretested. There were some questions that caused problems when the questionnaire was translated especially questions related to:
- Happiness because there are different perceptions about it.
- Homosexuality was rejected because cause apathy.
- Left-right (in politics) not clear in our society.
- Income levels - definition.
- Class categories because it is not easily understood in places other than urban areas.
These problems were solved looking for closest equivalents and it was carefully explained. No country-specific questions were included.
A number of questions were omitted because they sounded totally irrelevant for the local population or because previous surveys indicated that they did not work for this population:
- For instance, the Ethnic group question was considered irrelevant because officially when one asks for ethnic identity in Tanzania the respondent
seems to be evasive because it is negatively associated with tribalism favouring ones narrow/selfish interests and nepotism. Therefore responses would not be categorical and true. - The Region where the interview was conducted. This question was discarded because the Tanzania survey covers the entire country by sampling out representative districts and respondents by the use of a Table of Random numbers.
- Some concepts in the English version could hardly find a relevant equivalent (without distortions) in the language of the interview (Kiswahili). These were therefore omitted. These include some variables: Emotionally unstable people.
- Some concepts were irrelevant in Tanzania: e.g. Jews. This category is difficult to identify in Tanzania as it has people too few to be bothered
about. This category was however substituted with Christians and Witchdoctors and related labels. - The category known as European Union is irrelevant to Tanzania. The question was adopted and substituted with East African Cooperation.
The sample was designed to be representative of the entire adult population, i.e. 18 years and older, of your country. The lower age cut-off for the sample was 18 and there was not any upper age cut-off for the sample.
Data collection
| Start | End | Cycle |
|---|---|---|
| 2001-05-30 | 2001-11-06 | Wave 4 |
| Name |
|---|
| University of Dar es Salaam |
Interviews were done face to face. The interview language was the Tanzanian linguafranca namely Kiswahili. The reason for the decision was that Kiswahili is spoken by about 90% of the Tanzania population, it is the official language here, and it carries relevant conceptualisation of values content relevant to Tanzania. Interviewers were not paid according to performance. Approximately 70% of the interviews were supervised. Approximately 90% of the interviews were back-checked.
Data appraisal
Estimated error: 2.9
Access policy
World Values Survey
World Values Survey
http://www.worldvaluessurvey.org/WVSContents.jsp
Cost: None
Data Access
Inglehart, R., C. Haerpfer, A. Moreno, C. Welzel, K. Kizilova, J. Diez-Medrano, M. Lagos, P. Norris, E. Ponarin & B. Puranen et al. (eds.). 2014. World Values Survey: Round Four - Tanzania-Pooled Datafile Version: www.worldvaluessurvey.org/WVSDocumentationWV4.jsp. Madrid: JD Systems Institute.
Disclaimer and copyrights
The user of the data acknowledges that the original collector of the data, the authorized distributor of the data, and the relevant funding agency bear no responsibility for use of the data or for interpretations or inferences based upon such uses.
Contacts
| Name | Affiliation | |
|---|---|---|
| Director of the WVSA Archive | WVSA Data Archive | jdiezmed@jdsurvey.net |
Metadata production
DDI_TZA_2001_WVS-W4_v01_M_WB
| Name | Affiliation | Role |
|---|---|---|
| Development Economics Data Group | The World Bank | Documentation of the DDI |
2020-02-19
Metadata version
Version 01 (February 2020)