Oppgavegiveren: Quality of the diaries in the finnish and swedish time use surveys - part 1
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Oppgavegiveren: Quality of the diaries in the finnish and swedish time use surveys - part 1

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Quality of the diaries in the Finnish and Swedish Time Use Surveys, Survey modes in the Finnish Time Use Survey

Quality of the diaries in the Finnish and Swedish Time Use Surveys, Survey modes in the Finnish Time Use Survey

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  • 1. Quality of the diaries in the Finnish and Swedish Time Use Surveys Mikael Fredberg Statistics Sweden Hannu Pääkkönen Statistics Finland Nordiskt Statistikermöte, Bergen 15.–17. augusti 2013
  • 2. Survey modes in the Finnish Time Use Survey 2009–2010  Face-to-face interviews (CAPI) Full-scale survey  Telephone interviews (CATI) Full-scale survey  Mail questionnaire Light diary survey  + Self-completion paper diary in the full-scale survey
  • 3. Background  In order to save costs, the sample of Statistics Finland's Time Use Survey for 2009 to 2010 was randomly divided into two for face-to-face interviews and telephone interviews.  In Statistics Finland's earlier Time Use Surveys face-to- face interviews have been used.  The impact of the interview mode has been researched at Statistics Finland both quantitatively (Väisänen 2011, 2012) and qualitatively (Okkonen 2012).
  • 4. Non-response  The response rates of household interviews were higher in telephone interviews (62%) than in face-to-face interviews (58%).  More diaries were collected from households through face- to-face interviews (76%) than through telephone interviews (74%).  However, the total non-response was higher in face-to-face interviews than in telephone interviews.
  • 5. Quality of the diaries  The average of episodes in diaries explained during face- to-face interviews was 26.9 and 26.8 in diaries explained during telephone interviews.  No differences in the number of episodes based on the interview method.  The average duration of secondary activities in diaries explained during face-to-face interviews was 155 minutes and 175 minutes in diaries explained during telephone interviews.
  • 6. Qualitative examination  80 diaries were selected for qualitative examination, one- half of which had been explained during face-to-face interviews and one-half over the telephone.  The quality of the diaries was examined based on six criteria.  No quality differences were found based on the interview method.  However, there were differences in how the diaries had been filled in by women and men.
  • 7. The Finnish light diary pilot survey 2010  The light diary was tested with a sample of 1,000 persons in connection with the Finnish time use survey in 2010.  The data collection took place by mail and the respondents filled in the diary with 35 pre-coded activities.  The persons kept the diary for one day.  The age of the target persons was limited to between 25 and 64.  There were two data collection periods in March, each lasting one week.
  • 8. Non-response  The response rate was low, 17.4 per cent.  Something could be retrieved by using the available auxiliary information.  Post-stratification according to age group and gender combined with calibration estimators were used.
  • 9. Number of activities  The respondents were asked to record only one activity for each time slot.  If the respondents were doing two things simultaneously, they were to select only the one they themselves regarded as the main activity.  At least two activities per episode were recorded in 79 per cent of the diaries.  Thirty-one per cent of the respondents recorded three activities per episode.
  • 10. Comparison of results  The diaries produced estimates that were close to each other at the main time use category level with the exception of domestic work.  There are differences particularly in the classes Home maintenance and Child care.  The high non-response rate may, however, have an impact on these differences.
  • 11. Conclusion  Assistance from interviewers would be needed to reach a satisfactory response rate and to guarantee the quality of the filled in diaries.  In future, the use of a web questionnaire could be tested as an alternative to a light paper diary.  This could also improve the quality of the diaries.