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Questionnaire Specifications Database (QSD) i i ifi i b ( ) for Blaise Surveys Lilia Filippenko, Joe Nofziger and Valentina Grouverman September 2007 September, 2007 September, 2007 RTI International is a trade name of Research

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i i ifi i b ( ) Questionnaire Specifications Database (QSD) for Blaise Surveys

Lilia Filippenko, Joe Nofziger and Valentina Grouverman

September 2007 September, 2007

September, 2007

RTI International is a trade name of Research Triangle Institute

3040 Cornwallis Road ■ PO Box 12194 ■ Research Triangle Park North Carolina USA 27709

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3040 Cornwallis Road ■ P.O. Box 12194 ■ Research Triangle Park, North Carolina, USA 27709 Phone 919-541-6717 e-mail lfilippenko@rti.org Fax 919-541-6178

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Introduction Introduction

Questionnaire Specifications Database (QSD) Questionnaire Specifications Database (QSD)

  • Streamlines the process of creating Blaise instruments
  • Allows iterative changes at any point in development

g y p p

  • Produces specification documents
  • Supports Audio Computer Assisted Self-Interview (ACASI )
  • Tracks changes

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Changing Requirements Changing Requirements

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Overview of QSD Overview of QSD

  • User interface and business rules database
  • Back end relational database
  • Each survey team uses a dedicated instance of QSD
  • User Levels

St d d Standard user Questionnaire spec writer Questionnaire programmer Questionnaire programmer

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User Interactions User Interactions

  • Spec writers and translators make iterative changes to the

specifications

  • Programmers load specs from a document and automatically

Programmers load specs from a document and automatically create files with modules, types, and fills

  • Programmers export the changes into the Blaise code
  • Programmers create scripts for audio files and generate Blaise

code to play them All t ff it h d d i d l t f th Bl i

  • All staff monitor changes made during development of the Blaise

survey

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System flow System flow

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Logging Changes Logging Changes

E h i l d i h d i Each entry is logged with a username and timestamp

  • Add new question
  • Delete question

Delete question

  • Change text (question, response option, fill)
  • Change skip logic
  • Problems and comments

Info about skip logic changes Request to add new response option or fill Request to add new response option or fill Problem found in testing

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Quality Assurance Quality Assurance

Verifying Changes

Item level M d l l l Module level

Version Control

Version the Blaise instrument Label in source control (Blaise code) Version the exported specifications document Version the exported specifications document

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Login to QSD Login to QSD

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QSD Main Screen QSD Main Screen

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Preview Specs for Module Preview Specs for Module

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Edit Questionnaire Edit Questionnaire

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Test Audio Files Test Audio Files

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QSD for Programmers QSD for Programmers

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Update Fields in Blaise DB Update Fields in Blaise DB

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QSD at RTI International QSD at RTI International

In use for over two years y

  • More than 10,000 questions among 26 instruments across several

studies

  • Case Study: 442 changes logged in a single day - new version was

10752 12000

y g gg g y ready for testing the same evening

  • Change distribution

2982 2000 4000 6000 8000 10000 908 2000 Total Questions Total Text Changes Skip Logic Changes

Data log from four recent bilingual studies

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Data log from four recent bilingual studies

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Conclusion Conclusion

Advantages of QSD

  • Specs-Instrument synchronization
  • Programmers focus on logic rather than question wording
  • Addition of a second language without programmer intervention

E tensi e s pport for ACASI

  • Extensive support for ACASI

Future development

W b i t f

  • Web interface
  • Optional use of SQL Server for the back end database

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Acknowledgement Acknowledgement

We would like to thank members of the Research Computing Division and Survey Research Division at RTI International for y their use of QSD, as well as for their invaluable comments and suggestions related to its further improvement. For additional information, please contact Lilia Filippenko: lfilippenko@rti.org Joe Nofziger : jmn@rti.org Valentina Grouverman : vgrouverman@rti.org

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