Oppgavegiveren: Quality of the diaries in the finnish and swedish time use surveys - part 2

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Quality of the diaries in the Finnish and Swedish Time Use Surveys, The Swedish Light TUS 2010

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Oppgavegiveren: Quality of the diaries in the finnish and swedish time use surveys - part 2

  1. 1. Quality of the diaries in the Finnish and Swedish Time Use Surveys - Part 2: The Swedish Light TUS 2010 Nordisk Statistikermöte, Bergen, 15-17 augusti 2013
  2. 2. Background • Two time use surveys in 2010 • Commissioned by the Government • Several objectives • The non-response • The cost • Comparison of results • Calibrate the results
  3. 3. Light survey vs. main survey TA2010 LTA2010 Reference period 1 April 2010 – 31 March 2011 1 October 2010 – 30 September 2011 Data collection mode CATI and diary CATI and diary Sample 7 400 1 000 Type of diary Open with fixed intervals. The respondent describe with own words. Pre-coded activity categories and fixed intervals Coding Manually coding Pre-coded Number of activity codes 247 30 Length of interview Appr. 30 min (mean) Appr. 5 min (mean) Incentives Yes, lottery tickets (value 100 SEK) when fulfilling at least one diary Yes, lottery tickets (value 100 SEK) when fulfilling at least one diary Response rate 41,6% 52,2%
  4. 4. The field work – an overview Telephone interview The diaries are scanned Correcting errors with the respondent The interviewer check the diaries for errors Returning the diaries The respondent fills in the diaries Sending out the diary Diary information is coded on screen Quality control of the coded information Estimation and dissemination The sampled individual receives information about the survey and is informed that SCB will contact them
  5. 5. The field work – an overview Telephone interview The diaries are scanned Returning the diaries The respondent fills in the diaries Sending out the diary Quality control of the coded information Estimation and dissemination The sampled individual receives information about the survey and is informed that SCB will contact them
  6. 6. Response rates • Light survey: • All: 52,2 % • Women: 55,1 % • Men: 49,4 % • Main survey: • All: 41,6 % • Women: 43,9 % • Men: 39,4 % • Significant differences
  7. 7. Non-response • No contact: • Main survey: 16,2 % • Light survey: 12,2 % • Refusal to participate: • Main survey: 30,8 % • Light survey: 24,3 % • Minor differences when looking at marital status, level of education and age although some are significant: Ages 35-49 (lower share that refuse to participate) • Does the shorter interview and/or the diarydesign affect the non-response?
  8. 8. Episodes • Mean number of episodes: • Main survey: 26,0 • Light survey: 21,2 • Number of episodes with more than one activity registered: • 2,4 % (of 22 010 episodes) • Number of diaries with more then one episode including more than one activity: • 11,6 % (of 1 028 diaries)
  9. 9. Comparison of results • The two surveys produced estimates close to each other but there are differences: • Particularly Free time, Travel and Employment • Differences probably due to: • Two different designs • Less activities (how to aggregate the main survey activities properly) • How the respondent treat the activity • Non-response
  10. 10. Conclusion • Light survey: • Pros: • Less costly • Higher response rates • Relatively good quality • Good complement to the main survey • Cons: • Less information

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