Identification
Survey ID Number
GMB_2005_NASS_v01_M
Title
National Agricultural Sample Survey 2005-2006
Country
| Name | Country code |
|---|---|
| Gambia, The | GMB |
Study type
Agricultural Survey [ag/oth]
Series Information
This information is collected yearly on Area ,Yield and Production on both crops and livestock.
Abstract
The information on crop production and livestock dominance of the agriculture sector in the economy of the Gambia makes it inevitable that the sector is made a primary target for all economic and social developmental efforts undertaken by the government and other planners and policy makers. However the absence, paucity and unreliability of essential agricultural data required for policy, planning, programming and monitoring of appropriate activities in the sector has hampered efforts at constructive and realistic development planning. It is thus vital that an agricultural statistical database be established urgently to provide reliable data and information with which to accurately plan the implementation of developmental measures.
To achieve the above-mentioned objective, an annual survey (NASS) has to be conducted.
To achieve the above-mentioned objective, an annual survey (NASS) has to be conducted.
Kind of Data
Sample survey data [ssd]
Unit of Analysis
Households.
Version
Version Description
Version 1.1 (Final dataset) Edited non anonymized dataset, for internal use only.
Scope
Notes
The scope of crops and livestock in the survey included: - Identification particulars: Geographic area information; Holder sex, education status family size and type of holding - crop, livestock population and livestock products.
Coverage
Geographic Coverage
The National Agricultural Sample Survey covered entire country except two zones of Greater Banjul areas.
Universe
Households, who were engaged in growing crops and/or breeding and raising livestocks in private or in partnership with others in the selected sample.
Producers and sponsors
Primary investigators
| Name | Affiliation |
|---|---|
| Department of Planning | Department of State For Agriculture |
Producers
| Name | Affiliation | Role |
|---|---|---|
| Shahell | FAO | Finance |
| Shahel | FAO | Technical |
Funding Agency/Sponsor
| Name | Abbreviation | Role |
|---|---|---|
| Shahell | CILS | Funding of survey |
Other Identifications/Acknowledgments
| Name | Affiliation | Role |
|---|---|---|
| Dr. Sing | WB | Technical Assistance |
| Goverment of The Gambia (GOG) | Finance | Technical Assistance |
Sampling
Sampling Procedure
The overall sample design includes the choice of a frame, choice of sampling units, determination of the sample size, development of the selection procedure, preparation of estimators and their sampling errors and an analysis of the results. In this programme the use of EAs as primary sampling units (PSU) was advocated and these EAs corresponded with those used in the Population Census. In the past, the Enumeration Areas used by the ASRE were different from those of the CSD and this made comparability and other cross-classifications and related studies difficult. The sample selection was done in a manner that enabled the determination of the probability of each unit in the sample. These probabilities were used as weights to form the estimates.
The secondary sampling units (SSU) were dabadas, (clusters of households) found within the EAs. Within a selected EA, all dabadas are listed and those that are agricultural were identified. This list of identified households then constituted the list of holders from which a systematic random sample was selected for further enumeration.
The secondary sampling units (SSU) were dabadas, (clusters of households) found within the EAs. Within a selected EA, all dabadas are listed and those that are agricultural were identified. This list of identified households then constituted the list of holders from which a systematic random sample was selected for further enumeration.
Response Rate
A total of 74 Enumeration Areas (EAs) were selected to be covered by the survey, EAs. As regards, the ultimate sampling unit, it was planned to conduct the survey on 69,140 agricultural households.
Data Collection
Dates of Data Collection
| Start | End | Cycle |
|---|---|---|
| 2005-05-20 | 2006-02-28 | Eight months each year |
Time periods
| Start date | End date |
|---|---|
| 2005-06-30 | 2006-02-28 |
Data Collection Mode
Face-to-face [f2f]
Supervision
In the data collection of the survey, a total of 37 enumerators and 10 field supervisors were involved. To accomplish the data collection operation, all the enumerators were supplied with the necessary survey equipment at the completion of the training. To assist the data collection activities in deployment, supervision, and retrieval of completed questionnaires, reasonably adequate 3-wheel vehicles were used.
Data Collection Notes
Field Organization: The entire 3 branch statistical offices of the DOP participated in the survey undertaking, especially in organizing the second stage training, in deploying the field staff to their respective sites of assignment, and retrieving completed questionnaires and submitting them to the head office for data processing. They were also responsible in administering the financial and logistic aspect of the survey within the areas of their assignment. In the data collection of the survey, a total of 37 enumerators and10 field supervisors were involved.To complish the data collection operation, all the enumerators were supplied with the necessary survey equipment at the completion of the training. To assist the data collection activities in deployment, supervision, and retrieval of completed questionnaires, reasonably adequate 3-fourwheel vehicles were used.
In this survey, most of the data/information is obtained by direct investigation through: (a) the interview method in which answers were solicited from respondents and (b) physical measurements of fields and weighing of produce in order to obtain estimates of hectarage, yields and production respectively.
At the end of the annual training course for enumerators/supervisors, they were posted to their areas of work in May and commenced work immediately on arrival in their respective Enumeration Areas (EAs).
In this survey, most of the data/information is obtained by direct investigation through: (a) the interview method in which answers were solicited from respondents and (b) physical measurements of fields and weighing of produce in order to obtain estimates of hectarage, yields and production respectively.
At the end of the annual training course for enumerators/supervisors, they were posted to their areas of work in May and commenced work immediately on arrival in their respective Enumeration Areas (EAs).
Data Collectors
| Name | Abbreviation |
|---|---|
| Department of Planning | DoP |
Questionnaires
Questionnaires
The questionnaire is organized in to four parts:
Part 1: listing of households within the selected areas.This part provides the frame for the selection of the sample households.
Part 2: Identification particulars: This part contains area identification of the selected household. It dealt with area identification of respondents such as Region, settlementss, Enumeration area household number, holder number, and type of holding.
Part 3: Area measurementLi: This part of the questionnaire dealt with number of cattle, sheep, goats, horses, and mules by age and purpose; production of poultry and ; livestock diseases, treatment and vaccination; and livestock feeds used. The questionnaire used in the field for data collection purpose was prepared in English.
Part 4: Yield measument.This part captures yield crop cutted from the plots.
Part 1: listing of households within the selected areas.This part provides the frame for the selection of the sample households.
Part 2: Identification particulars: This part contains area identification of the selected household. It dealt with area identification of respondents such as Region, settlementss, Enumeration area household number, holder number, and type of holding.
Part 3: Area measurementLi: This part of the questionnaire dealt with number of cattle, sheep, goats, horses, and mules by age and purpose; production of poultry and ; livestock diseases, treatment and vaccination; and livestock feeds used. The questionnaire used in the field for data collection purpose was prepared in English.
Part 4: Yield measument.This part captures yield crop cutted from the plots.
Data Processing
Other Processing
Achievements of this survey should be largely attributed to the commitment and hard work of various staff of the Department of Planning. These include the survey designers; field enumerators and supervisors who sacrificed a lot by working under sometimes harsh and difficult terrain to obtain good results; data entry and statistical clerks whose dedication to their duties contributed greatly to the reliability of the data and the ease of data processing; and other DOP staff whose support facilitated the entire exercise. Supervision on data entry gives good confidence to the data user.
The DOP is grateful for their co-operation and assistance.
The DOP is grateful for their co-operation and assistance.
Data Appraisal
Estimates of Sampling Error
Estimation procedure for totals and ratios and their sampling errors can only be accessed in the Annex table.
Access policy
Access authority
| Name | Affiliation | |
|---|---|---|
| Department of Planning | DoSA | bajodop@yahoo.com |
Contacts
| Name | |
|---|---|
| Department of Planning - Principal Statistician | mansakonko2000@yahoo.co.uk |
Access conditions
Data can only be accessed by approved users and for non-commercial purposes.
Citation requirements
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
- 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
Disclaimer and copyrights
Disclaimer
Department of Planning provides these data to external users without any warranty or responsibility implied. Department of Planning accepts no responsibility for the results and/or implications of any actions resulting from the use of these data.
Metadata production
DDI Document ID
DDI_GMB_2005_NASS_v02_M
Producers
| Name | Abbreviation | Affiliation | Role |
|---|---|---|---|
| Department of Planning | DOP | Department of State for Agriculture | Production of the metadata |
| National Agricultural Sample Survey | NASS | Department of State for Agriculture | Production of the metadata |
| Gambia Bureau of Statistics | GBoS | Department of State for Finance and Economic Affairs | DDI review and instruction |
Date of Metadata Production
2007-06-26
DDI Document version
Version 02: Adopted from DDI (DDI-GMB-DOP-NASS-2005-v1.1) that was done by Department of Planning and National Agricultural Sample Survey and reviewed by Gambia Bureau of Statistics.