Comprehensive Food Security and Vulnerability Analysis Assessment 2005-2006
The objectives of the CSFVA in Tanzania were to:
· provide information on food security and nutritional status in rural Tanzania;
· document the resources accessible to rural households and resources allocation, including the livelihood and income earning activities pursued at the household level;
· assess rural communities' exposure to crisis and coping mechanisms used by rural communities
· evaluate the context (education, health, social structure) and future risks for food security and livelihoods;
· establish a typology and geographic distribution of households food insecurity and vulnerability to food insecurity and assess their geographic distribution; and
· recommend appropriate food and non food programme interventions to address both contextual and structural problems that affect food security in rural Tanzania
Kind of Data
Sample survey data [ssd]
Unit of Analysis
- Children aged 0-59 months
This version has updates based upon feedback from IHSN.
consumption/consumer behaviour [1.1]
rural economics [1.6]
agricultural, forestry and rural industry [2.1]
basic skills education [6.1]
compulsory and pre-school education [6.2]
general health [8.4]
environmental degradation/pollution and protection [9.1]
land use and planning [10.2]
gender and gender roles [12.6]
family life and marriage [12.5]
Rural national coverage by region including the island regions of Zanzibar and Pemba
Unit of Analysis
- Children aged 0-59 months
The sample universe for this study was all rural households of Tanzania.
Producers and sponsors
Authoring entity/Primary investigators
World Food Programme
Food Security Information Team
National Bureau of Statistics
Survey data collection
World Food Programme
Funding the study
The household sample was taken using a two-stage random sample method. Fourteen villages were randomly selected with probability proportional to size for each Region (an additional 3 villages were selected as replacements incase the village could not be located or was not reachable within the time frame due to extreme logistical and transport constraints; total of 17 villages selected during the randomization process). Upon arrival at each village the supervisor of the team, with the assistance of the village authorities, identified the total number of vitongoje (smallest administrative area). From this list one kitongoje was randomly selected using a random number table. The purpose of selecting individual kitongoje was to reduce movement around often large expanses of the villages. The assumption is that the villages are relatively homogenous with each kitongoje being representative of the village as a whole.
Once the kitongoje was selected a complete list of households was made with the assistance of the local leaders. From this list 9households were randomly selected using a simple random selection (3 additional households were selected in the event that households selected were not available for survey). The head of the household (at least 15 years or older) was interviewed during the survey. Where a selected household or individual were absent or declined interview this was recorded and one of the additional randomly selected household were interviewed.
The minimum sample size for the whole survey was 2,772 households. Within each region data was collected from a minimum of 126 households (14 villages x 9 households). The WFP zones that were identified using the PCA had differing numbers of households depending on the size of the zone.
Household weights are calculated by population per region
Dates of Data Collection (YYYY/MM/DD)
Mode of data collection
The CFSVA was conducted by the Tanzania National Bureau of Statistics, as sub-contracted by WFP. The 22 teams of 4 people were used to conduct surveys in 22 survey zones, as described in the next section. Each team consisted of 1Team Supervisor; 1Community Interviewer; 2 Households Interviewer. The team supervisors had previous experience in conducting food security type surveys and the enumerators also had prior experience in conducting food security surveys. At least one of the team members had previous experience in taking anthropometric measurements.
Due to the large scale of the Tanzanian CFSVA (22 surveys including 88 enumerators) and time constraints, training for the data collection teams was conducted in two stages. A central training was provided for all the supervisors and facilitated by the WFP CFSVA consultant to ensure that complete and comprehensive training was provided. The enumeration teams were trained at different locations, in small groups to facilitate improved learning, by the supervisors with assistance from senior NBS staff and attended in certain locations by WFP staff.
Type of Research Instrument
01 - Household Questionnaire - This questionnaire was the focus of the primary data collection and was designed to provide quantitative data in the following nine areas of interest; 1) Demographics, 2) Housing & Facilities, 3) Household Assets & Productive Assets, 4) Inputs to Livelihood, 5) Expenditure, 6) Food Sources & Consumption, 7) Shocks & Food Security, 8) Maternal Health & Nutrition and 9) Child Health & Nutrition. This tool was a structured questionnaire using tested response options for the enumerators to record the most likely and common responses to the questions. An “other - specify” option was used to capture less likely/uncommon responses. Response options were not read to the respondent. For several questions respondents were allowed to provide more than one response.
02 - Community Questionnaire - This questionnaire was both qualitative and quantitative and designed to provide information that is common to the majority of the sampled village population. This was in order to reduce the duration of the household interview. Qualitative questions helped to provide context to the data provided from the household questionnaires. This questionnaire contained 7 sections; 1) Demographic Information, 2) Transportation, 3) Education, 4) Health, 5) Market Information, 6) Assistance & Food Aid and 7) Agriculture.
Tanzania National Bureau of Statistics
Government of Tanzania
Statistical analysis was conducted by WFP in Tanzania and Rome. SPSS 12.0 and ADDATI 5.2c were used to conduct PCA and clustering analysis. Nutritional indicators were calculated using EpiInfo v6.04d EPINUT. All other analysis was done using SPSS 11.5 & 12.0.
In order to request a dataset from a WFP survey, please provide the following information:
1) Country, name, and date of survey data requested.
2) Your name, contact information, and affiliation.
• ‘The use of the data is restricted to the purpose described in our concept note, attached.’
• ‘We understand that further analysis beyond this purpose will require a separate request.’
• ‘[your organization] agrees not to share this data with other entities outside of [your organization] except as stipulated in the concept note’ (as referenced in the term above).
• ‘[your organization] agrees that credit for the data will be attributed to WFP for its work conducted in [country(ies) name(s)]. WFP’s logo will be included in any document produced using that data. (If a peer reviewed paper results from this research, journals don’t allow agency logos, but credit for the data will be given in the acknowledgements section)’.
• ‘[your organization] will provide WFP with the draft analysis and report for review prior to finalizing / publishing / making public ANY conclusions, to ensure that there is no obvious contradictions with WFP findings/conclusions’.
• ‘[your organization] agrees that the analysis conducted using this data (for the purpose stated above) is the sole responsibility of [your organization], and opinions stated as a result of that analysis are the sole opinions of [your organization]’.
All communication, preferably by e-mail, should be addressed to:
World Food Programme, OMXF - Food security analysis service
Via Cesare Giulia Viola 66/70
Parco dei Medici 00148 Rome, Italy
Use of the dataset must be acknowledged using a citation which would include:
- the Identification of the Primary Investigator
- the title of the survey (including country, acronym and year of implementation)
- the survey reference number
- the source and date of download
World Food Programme. Tanzania Comprehensive Food Security and Vulnerability Analysis Assessment 2006. Ref. TZA_2005_CFSVA_v01_M. Dataset downloaded from http://nada.vam.wfp.org/index.php/catalog on [date].
Disclaimer and copyrights
This document has been produced with the financial assistance of the European Union. The views expressed herein can in no way be taken to reflect the official opinion of the European Union.
Your organization agrees that any analysis conducted using this data is the sole responsibility of your organization, and opinions stated as a result of that analysis are the sole opinions of your organization.
Vulnerability Analysis and Mapping
VAM Headquarters, Rome
WFP Country Office, Tanzania
World Bank Development Data Group
The World Bank
Reviewed the metadata
Date of Production
Version 02 (February 2014). Edited version, the initial version (Version 1.2 - August 2009, DDI-TZA-WFP-CFSVA-2006-v1.2) DDI was done by Amit Wadhwa (WFP).
Following DDI elements are edited, DDI ID, Study ID, Title, and Abbreviation. External resources (questionnaires and report) are attached to the DDI.