1 / 21

Data collection

Data collection. Presented by. Johan Erikson Statistics Sweden. Data collection - outline . Modes of data collection Choosing the mode(s) Mixing modes Choosing the contact strategy Setting up the collection – web questionnaires Data collection modules in the handbook.

keona
Télécharger la présentation

Data collection

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Data collection

  2. Presented by • Johan Erikson • Statistics Sweden

  3. Data collection - outline • Modes of data collection • Choosing the mode(s) • Mixing modes • Choosing the contact strategy • Setting up the collection – web questionnaires • Data collection modules in the handbook

  4. Modes of data collection • Interviewer-administered modes • Telephone interviews (CATI) • Face-to-face interviews (CAPI) • Self-administered modes • Paper questionnaire • Electronic questionnaire (CAWI, downloadable forms, and different types of file transfer)

  5. Modes of data collection (2) Modes without respondent • Electronic data interchange (EDI, XBRL) • Observation • Administrative data (secondary data)

  6. Choosing the mode • Factors to consider: • Response process • Response burden • Desired data quality (response rate, measurement error) • Available resources • Budget • Staff • IT-resources and respondent´s technical conditions • Respondent expectations • Topic of the survey • Timetable

  7. Response process • Assigning priorities • Authorisation • Data in records • Gatekeepers • More than one respondent • Based on this, self-administered modes are most common in business surveys

  8. Response burden • Questionnaire design vs data availability • Timing • Finding the right person(s) and dividing tasks • Questionnaire design is vital!

  9. Data quality • Response rates are generally higher in interviewer-administered modes • However, interviews might not be an alternative • And business surveys are often mandatory • Helping the respondent to higher quality • Pre-printing • Built-in functionality in EQ

  10. Mixing modes • Using more than one mode • Costs of mixing modes: • Several questionnaires, set-up costs • Risk of mode effects • Staffing • Advantages of mixing modes • Coverage • Response ratesand data quality • Costs in the collection stage

  11. Mixing modes • Two main types of mixed mode • Parallel approach • Lets the respondent choose • Sequential approach • Primary mode offered first • Typically, cheapest mode first • A third approach: Differentiating modes: • The most expensive modes not used for all businesses

  12. Most common data collection strategy: • Use already collected data when possible • Promote the main mode (web) all the way • Design for mixed modes • Use modes in sequence, starting with the cheapest • Optimise the questionnaire design for each mode • Have special treatment of the largest businesses

  13. Contact strategy • When to send • Enough time to finish the survey • Data availability • Reasonable time to respond • No. of reminders • Other surveys • What to send • Based on the mixed mode strategy • Paper form or not?

  14. Contact strategy (2) • Method of contact • Mail (letter) • E-mail • Telephone • Who to contact • Reaching the best respondent • Difference between small and large enterprises • Using previous contacts • Using a generic role

  15. Contact strategy (3) • New businesses in the survey • Specific treatment or not? • Sample rotation, ongoing surveys • Finding the right person • Showing the enterprise the importance of replying

  16. Contact strategy (4) • Specific treatment: • Single point of contact • Building relations • Profiling statistical units • Finding contact persons • Support for the enterprise • Support for survey staff • Enterprise-specific arrangements • Coherence analysis

  17. Contact strategy (5) • Feedback to respondents • General feedback • Enterprise-specific feedback • Responsive design issues • Making design choices based on results so far: • Switching modes • Switching contact methods • Different questionnaires • Penalties/fines

  18. Set-up collection: Web questionnaires • Introduction letter • Describing the survey • Letting the businesses prepare • Login procedures • Security issues • Must be easy

  19. Web questionnaires (2) • Editing during data collection • Hard errors / soft errors • Client-side / Server-side • Platforms and browsers • Response time • Several response sessions • Web-site / Business portal

  20. Web questionnaires (3) • More advanced electronic alternatives: • Touch-tone data entry • File transfer • File import (XBRL) • Electronic data interchange

  21. Data collection modules • Main theme module - overview • Design of data collection 1 – modes • Design of data collection 2 – contact strategy • Techniques and tools • Mixed mode • CATI allocation • Collection and use of secondary data

More Related