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Use of Technology for field data capture and compilation, and the implications


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Use of Technology for field data capture and compilation, and the implications.

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Use of Technology for field data capture and compilation, and the implications

  1. 1. Regional Workshop for Monitoring the SDGs related to the Food and Agriculture Sector and on the WCA 2020 Nadi, Fiji 6-10 November 2017 Use of Technology for field data capture and compilation Technical session 17b Jairo Castano Senior Statistician Leader, Agricultural Census and Survey Team FAO Statistics Division
  2. 2.  Overview of CAPI: description, advantages, disadvantages, products on the market  Overview of Survey Solutions features  Country examples: Estonia and Latvia Overview
  3. 3. • Remote sensing (RS) and aerial/ortho-photos: RS and aerial photos can be used for (i) cartography and frame building, (ii) supporting field work, (iii) crop estimation. • Handheld GPS devices: supports field activities such as geo-referencing plots, holding location, or measuring plot areas. • Mobile data collection: Computer Assisted Personal Interview (CAPI) using smartphones, tablets). • Remote data collection: Use of telephone and computers, such as Computer assisted telephone interview (CATI) and internet such as Computer assisted Self Interview (CASI or CAWI). • Online dissemination of results: web pages, social media and other electronic methods. Infographics and thematic GIS maps enhance readability and comprehensibility of census results. • Anonymization of micro-data: protocols, methods and tools available for safe microdata access. New opportunities for census dissemination. • Archiving: electronic preservation of census data. Examples of use of technology in the census
  4. 4. Computer Assisted Personal Interview (CAPI) software allows recording responses on a computer or tablet instead of paper. What is CAPI?
  5. 5. • Easier Survey Management • Reduced variables costs (No transport costs, no storage costs, no printing costs, no data-entry costs) • Reduced time from data collection to analysis and reporting • Higher quality data (Enforced skip patterns, validation conditions, look-up tables) What are the advantages of CAPI?
  6. 6. Novel question types  Geo reference, photos, barcodes scanning (for national IDs) Closer field monitoring  Export paradata for monitoring activities during interviews (e.g. start & end time)  Almost real time export of microdata Easier to implement changes to questionnaire  No need to send questionnaires back and forth to field What are the advantages of CAPI?
  7. 7. High fixed cost  Can be reduced by sharing use with other surveys Requires more preparation time - programming and testing questionnaire, procurement  Time savings on back-end from no data entry compensates Many times requires connectivity  Risks can be reduced by using 2 sim cards, back-up paper questionnaires, etc. Others: vulnerability to weather, batteries and access to power for charging What are disadvantages of CAPI?
  8. 8. Census and Survey Processing System (CSPro) Developed by the US census bureau and funded primarily by USAID. Widely used, but lacks survey management tools and requires programming knowledge. FREE + programming costs Open Data Kit (ODK): Core developers at UoW – Dpt. Of Computer Science. Open-sourced, funded partially through donations of users. FREE+ programming costs My Survey Solutions: Development supported by the Worl Bank GS, and first version released in 09.2013. Closed source, but integrates data management tools, and requires little to no knowledge of programming. FREE CAPI Products
  9. 9. • Global Strategy has implemented small sample surveys in Tanzania, Indonesia, and Jamaica • World Bank in partnership w/ NSOs have implemented surveys reaching 200K respondents in Malawi, 400K in Uganda, and 2.7 million in South Africa. FAO and Survey Solutions
  10. 10.  User friendly survey management system built right into the software.  Survey designer that requires no programming skills  Cloud based data storage and transfer  Geo references questions (holding location)  Can accommodate any type of question  User-friendly Android application for data entry Survey Solutions Features
  11. 11.  Documentation on every part of the system available  E-learning course available online (13 modules)  Data export available in SPSS and STATA formats.  DDI compliant metadata automatically generated.  Automatic paradata tabulation for field monitoring *DDI: Data Documentation Initiative, an int’l standard for describing statistical data Survey Solutions Features (cont’d)
  12. 12. • For the Agricultural Census 2010/2011, Australia Bureau of Statistics (ABS) used CASI. • The agricultural business were contacted by ABS by the postal service (mail) which included a paper form that they could complete and return to ABS, as well as details that enabled an alternate mode of response to be provided (for the first time for an Agricultural Census) via an electronic form. •The majority of business responded by mail (88%) Country Experience Australia - Agricultural Census 2010/2011
  13. 13. Country experiences on use of CAPI, CATI, CASI and GPS technologies in census Country name Year of census CAPI/GPS/PDA/CA TI/CASI Estonia 2010 CAPI, CASI France 2010 CAPI Latvia 2010 CAPI, CATI,CASI, Malta 2010 CAPI Poland 2010 CAPI, CATI,CASI Slovenia 2010 CAPI, CATI Lithuania 2010 CASI Netherlands 2010 CASI Iceland 2010 CASI Austria 2010 CASI Finland 2010 CASI Sweden 2010 CASI, CATI Mozambique 2009/2010 CAPI, GPS Venezuela 2008 CAPI, GPS Argentina 2008 CAPI Colombia 2014 CAPI Brazil 2006 CAPI Mexico 2007 CAPI Canada 2011 CASI Uruguay 2011 GPS USA 2012 CASI Australia 2011 CASI Jordan 2007 CAPI Thailand 2013 CAPI Iran Namibia 2014 2015 CAPI CAPI, GPS Countries are increasingly using IT technology in agricultural censuses for:  data collection (CAPI, CASI, CATI);  identification of location for field operation of enumerators (GPS);  online monitoring of the progress in field operations in real time.
  14. 14. Thank You