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The implementation of tools to support the data quality of the survey frame

The implementation of tools to support the data quality of the survey frame. Mario Ménard. November 2008. Data sources to populate and maintain the survey frame Quality Assurance Survey Interceptor Module Survey Frame Assessment Tool. Outline. Data Sources used to maintain the frame.

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The implementation of tools to support the data quality of the survey frame

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  1. The implementation of tools to support the data quality of the survey frame Mario Ménard November 2008

  2. Data sources to populate and maintain the survey frame Quality Assurance Survey Interceptor Module Survey Frame Assessment Tool Outline Statistics Canada • Statistique Canada

  3. Data Sources used to maintain the frame • Legal name, business address, main activity description, geographical location, size measures etc. • Data collection centers transmit survey feedback to the Register • Interception of legal name, business status and NAICS changes Canadian Revenue Agency (CRA) Survey Feedback • 99% of businesses have only one operating entity Central Survey Frame Business Register • Identification of inactive businesses • Review the validity of the survey feedback Profilers and Frame Analysts NAICS Coding • Updates business structure and its characteristics • 400 000 new businesses each year • 45 % are coded automatically based on the description provided at the time of registration • 55 % requires manual intervention • Review the updates performed on business structures and its characteristics • # of misclassified businesses Statistics Canada • Statistique Canada

  4. QAS measures the number of inactive businesses and the quality of NAICS coding for units on the BR Monthly sample of 600 businesses Allows small constant surveys conducted by a few individuals Reduces QAS interviewer re-training and ensures survey consistency from month to month Provides timely, relevant measurements Gives an indication of the inactive units and coding quality over time Units eligible for selection exclude very large and complex businesses and recently surveyed units Quality Assurance Survey Statistics Canada • Statistique Canada

  5. Quality Assurance Survey Resultsfrom June 2007 - July 2008 Statistics Canada • Statistique Canada

  6. Quality Assurance Survey Resultsfrom June 2007 - July 2008 Statistics Canada • Statistique Canada

  7. Intercepts requests for updates received from the data collection centres The following events are intercepted: Classification changes Legal name changes Business Status changes Survey program managers have the choice to decide if they want to use this module After 35 days in the interceptor module, requests for updates are processed automatically to avoid the accumulation of events Interceptor Module Statistics Canada • Statistique Canada

  8. Number and status of update requests received in the Interceptor ModuleFrom January 2008 to September 2008 Statistics Canada • Statistique Canada

  9. Indicates changes on the survey frame from one period to the other Easily accesses the details of the changes Analysis performed just before the release of the monthly Generic Survey Universe File Identifies the largest contributors to the change from one period to the another Measures the quality of work being performed by the people making updates to the frame Provides constructive feedback and a good indication of additional training that may be required Survey Frame Assessment Tool Statistics Canada • Statistique Canada

  10. Survey Frame Assessment Tool Number of additional establishments and their revenue contribution by type of updates between the June 1st and July 1st G-SUF, 2008 Statistics Canada • Statistique Canada

  11. Survey Frame Assessment Tool Number of additional establishments and their revenue contribution by type of updates between the June 1st and July 1st G-SUF, 2008 Statistics Canada • Statistique Canada

  12. Survey Frame Assessment Tool Number of additional establishments and their revenue contribution by type of updates between the June 1st and July 1st G-SUF, 2008 Statistics Canada • Statistique Canada

  13. Survey Frame Assessment Tool Example of the detailed regarding each update that contributed to the changes in the GSUF from June 1st and July 1st G-SUF, 2008 Statistics Canada • Statistique Canada

  14. Questions Thank you Statistics Canada • Statistique Canada

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