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Designing Low Cost Rapid Data Collection Systems

Designing Low Cost Rapid Data Collection Systems. Arie Aharon, Israel Central Bureau of Statistics. Seminar on New Frontiers for Statistical Data Collection Geneva, Switzerland, 31 October – 2 November 2012. The Reason and the Necessity: Background.

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Designing Low Cost Rapid Data Collection Systems

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  1. Designing Low Cost Rapid Data Collection Systems Arie Aharon, Israel Central Bureau of Statistics Seminar on New Frontiers for Statistical Data Collection Geneva, Switzerland, 31 October – 2 November 2012

  2. The Reason and the Necessity:Background • Increase in the scope of surveys – due to Israel’s membershipin the OECD and demands by government ministries. • Demands of some of the surveys: • Need to be conducted within a short time after the date they are commissioned • Subject to rigid budgetary constraints. • The problem – each survey is uniquely “tailored”, an expensive factor that also requires considerable time. The goal: Conduct a survey rapidly at low cost.

  3. Main Operational Elements of Every Survey • A sampling system—defining the survey population and drawing the sample • A questionnaire (developing a computerized questionnaire) • Management System - A system for managing the survey’s fieldwork • Data transmission • Personnel—interviewers and supervisors • Data entry systems—for surveys in which paper questionnaires are used

  4. The factors that affect Survey Costs and Duration of Planning • Defining the developmental needs and demands • Development of computerized data collection systems (questionnaire and fieldwork management system) • Personnel—interviewers and supervisors

  5. The Proposed Solution In light of the factors that affect the survey costs and the duration of survey planning, the proposed solution is: • To conduct a supplementary (hitchhiking) survey based on an existing survey. • To develop computerized generic systems.

  6. Supplementary Survey

  7. What is a supplementary (hitchhiking) survey? • A survey based on the existing platform of another survey. • Makes use of as many elements as possible from an existing survey and applies them in the new survey.

  8. What does this mean? • Using the same sample. • The same interviewers and supervisors • No need for additional personnel, but it does involve a larger investment of time in fieldwork • Integration with generic systems (as will be explained) • Using the same fieldwork management system. • Reducing the potentialresponse burden. The main expense is the cost of adding a new questionnaire to an existing survey.

  9. Examples of Supplementary Surveys The Financial Literacy Survey • Supplemented to the Social Survey (operated with CAPI method). • The additional questionnaire was on paper (printed methodology). Consumer Confidence Survey • Based on the platform of participants sampled in the Social Survey (conducted with CATI method). • Using the same sample, no need for collecting demographic data, using the same telephone numbers collected in the field interview.

  10. (continued) Monthly Labour Force Survey • A computerized system was designed to enable supplementary surveys. Health Survey • Supplementary Survey to the Quarterly Labour Force Survey(using CATI method). • A computerized system was not developed and the data was filled in on paperquestionnaire.

  11. Generic System

  12. Generic System (Survey) A generic system is one for which templates have been developed that can be adapted to many surveys, both for CATI and CAPI methods • The system consists of several components: • A questionnaire • A system for managing fieldwork at several levels • Transmission of data with CAPI • A system of data entry from the generic questionnaires—for printed questionnaires

  13. Goals of the Generic System • To reduce the time involved in designing a new survey. • To combine several data collection methods (CATI, CAPI, CAWI). • Uniformity in managing surveys • Establishing standard activities and processes for conducting the surveys. • Making it easier for the interviewers—they are working with similar systems. • Saving development time.

  14. Generic System—Additional Features • The generic system is fast and economical. • Its limitation—designing complex questionnaires with data flow. • Survey management system—to combine with all methods of collection and with all types of surveys, both of households and of businesses. • Data transmission—used in CAPI surveys; the system has been applied to all of the surveys and has created standardization for all the interviewers. • Data entry from printed generic questionnaires—still under development.

  15. Supplementary Survey and Generic System: Concluding Remarks • Effective tools for cutting costs and significantly reducing the time involved in planning surveys. • Appropriate for relatively small surveys • Supplementary surveys – length of the questionnaire (or duration of interview) • Generic – complexity of the survey • In the future this subject will be developed as well. • Supplementary Survey • Reduces the potentialresponse burden. • It is always based on a main current survey such as the Labour Force Survey or the Social Survey.

  16. Thank You! aharon@cbs.gov.il

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