Comparing a 2 and 7 day registration diary in time use research evaluating the eurostat guidelines
This presentation is the property of its rightful owner.
Sponsored Links
1 / 21

Comparing a 2 and 7 day registration diary in time-use research Evaluating the EUROSTAT guidelines PowerPoint PPT Presentation


  • 32 Views
  • Uploaded on
  • Presentation posted in: General

Comparing a 2 and 7 day registration diary in time-use research Evaluating the EUROSTAT guidelines. Contact: [email protected] [email protected] Vrije Universiteit Brussel (Belgium) Paper prepared for the European Conference on Quality in Official Statistics, 8-11 July, Rome.

Download Presentation

Comparing a 2 and 7 day registration diary in time-use research Evaluating the EUROSTAT guidelines

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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Comparing a 2 and 7 day registration diary in time use research evaluating the eurostat guidelines

Comparing a 2 and 7 day registration diary in time-use researchEvaluating the EUROSTAT guidelines

Contact:

[email protected]

[email protected]

Vrije Universiteit Brussel (Belgium)

Paper prepared for the European Conference on Quality in Official Statistics, 8-11 July, Rome


Time use registration goals hetus project

Time-use registrationGoals HETUS-project

  • Since Szalai a number of conventions with regard to the methodology of time budget research have been established

  • Nevertheless: a great variety of recording methods at the moment of recording the information still exists

    • Fixed / open time interval

    • Precoded activity list / after coding

    • Number of diary days recorded

  • HETUS: one general guideline for all member countries

    => Guidelines for recording the time-use information

European Conference on Quality in Official Statistics, 8-11 July 2008, Rome


Time use registration goals hetus project1

Time-use registrationGoals HETUS-project

  • Collecting time-use information in a comparable way

    => Harmonisation

  • To make comparisons between countries possible

  • Major concerns

    • Design of the diary

    • Field work

  • Our interest centres on the recommendation regarding the number of diary days

European Conference on Quality in Official Statistics, 8-11 July 2008, Rome


Time use registration recommendations to the number of diary days

Time-use registrationRecommendations to the number of diary days

  • It is recommended to use two diary days, i.e. one weekday (Monday-Friday) and one weekend-day (Saturday and Sunday)

  • It is strongly recommended that diary days/dates be allocated to households/individuals by a controlled random procedure

  • It is recommended that the survey days/dates are representative of, and cover a full 12 month period

European Conference on Quality in Official Statistics, 8-11 July 2008, Rome


Time use registration presenting the time use results

Time-use registrationPresenting the time-use results

  • Calculating estimates for:

    • Weekdays (Monday-Friday)

    • Saturday

    • Sunday

    • All days of the week (Monday-Sunday)

  • Synthetic workweek: weekday*5

  • Synthetic weekend: weekend day*2

  • Synthetic week: (weekday*5)+(weekend day*2)

European Conference on Quality in Official Statistics, 8-11 July 2008, Rome


Time use registration goal this presentation

Time-use registrationGoal this presentation

  • Rationale for 2 vs. 7 days:

  • Costs of fieldwork

  • Response rate

  • Learning/boredom

  • Number of respondents

  • Zero observations

  • Intra-personal variability

  • More statistical options

  • Testing the consequences of the recommendation of recording only 2 days instead of 7 consecutive days

European Conference on Quality in Official Statistics, 8-11 July 2008, Rome


Time use registration daily vs weekly cycles an example

Time-use registrationDaily vs weekly cycles: an example

  • The week cycle is an important cycle in our social life

    • F.e. working time, work during weekdays, week/weekend contrast, the specific character of Sunday and Saturday in the weekcycle

  • Certain activities follow a weekcycle and occur once or several times a week

    • F.e. sports, social life, taking part in associations, cleaning, …

European Conference on Quality in Official Statistics, 8-11 July 2008, Rome


Time use registration data used

Time-use registrationData used

  • Flemish time budget dataset

  • Respondents filled in 7 consecutive days, starting day was randomly determined

  • Pooled dataset

    • 1999 in total 1394 respondents

    • 2004 in total 1860 respondents

  • Open time interval / precoded activity list

European Conference on Quality in Official Statistics, 8-11 July 2008, Rome


Time use registration creating 2 day dataset

Time-use registrationCreating 2 day dataset

  • Selection of 2 days with the guidelines of EUROSTAT in mind

  • Selection of the weekday (total, n=3.254) was not random

    => We selected the first registration day if it was a weekday

    => If not, randomly selected one weekday

  • Selection of Saturday or Sunday (total, n=3.254) was random

  • Weighting

    • Socio-demographic (sexe, age & education)

    • Diary days (Mon=Tue=Wed=Thu=Fri); (Sat=Sun)

European Conference on Quality in Official Statistics, 8-11 July 2008, Rome


Time use registration mean time week hours and minutes all respondents

Time-use registrationMean time/week, hours and minutes: all respondents

European Conference on Quality in Official Statistics, 8-11 July 2008, Rome


Time use registration frequency of activities

Time-use registrationFrequency of activities

European Conference on Quality in Official Statistics, 8-11 July 2008, Rome


Time use registration results in words

Time-use registrationResults in words

  • The estimates on population level between 2-day and 7-day registration for a synthetic week are comparable

  • Positive and negative factors (methodology & quality) keep each other in balance

  • The largest difference is 18 minutes for the activity ‘Sleep & rest’, however as a percentage of the total time spent sleeping and resting it is nearly 0

  • Essential conditions:

    • Large(r) sample

    • With respect to the length of the registration period

    • Equal dispersion of the diary days

European Conference on Quality in Official Statistics, 8-11 July 2008, Rome


Time use registration mean time week hours and minutes all respondents1

Time-use registrationMean time/week, hours and minutes: all respondents

European Conference on Quality in Official Statistics, 8-11 July 2008, Rome


Time use registration results in words1

Time-use registrationResults in words

  • Due to a lower sample size, the results are less stable

  • Individual diary days are represented by a smaller number of respondents

  • Some activity groups are less biased, there is an indication that ‘the more a (sub-) population takes part in an activity as a group, the less a large sample size is needed for a good estimation.’

  • Socio-demographical variables / breakdowns to:

    • Sexe / age / education / …

    • Sexe x age / …

  • Closer look with other (international) data -> lager sample

European Conference on Quality in Official Statistics, 8-11 July 2008, Rome


Time use registration variation in different days of the week

Time-use registrationVariation in different days of the week

  • Kalton (1985) variability across the weekdays, Monday till Friday is relatively small

  • Stinson (2000) finds evidence that the activity pattern of Friday is different from the other weekdays, and also from Saturday and Sunday

    And, could change even more in the future

  • Szalai T-Test

  • Results pooled dataset

European Conference on Quality in Official Statistics, 8-11 July 2008, Rome


Time use registration participation rate

Time-use registrationParticipation rate

  • Time-use accounting identity

    => Ti=PiT’i

    Ti = mean time population; Pi = population participation rate; T’i = mean time participants

  • Participation rate per day, or average along longer period

    HETUS

    Pi(weekday)=(Pi(mon)+Pi(thu)+Pi(wed)+Pi(thu)+Pi(Fri))/5

  • Participation rate across f.e. weekday

    7-day registration

    Pi(weekday)=Pi(Mon thru Fri)

  • F.e. trafic gestion

European Conference on Quality in Official Statistics, 8-11 July 2008, Rome


Time use registration rhythm of a weekday mon fri

Time-use registrationRhythm of a weekday (Mon-Fri)

European Conference on Quality in Official Statistics, 8-11 July 2008, Rome


Time use registration participation rates

Time-use registrationParticipation rates

European Conference on Quality in Official Statistics, 8-11 July 2008, Rome


Time use registration cumulative participation rate

Time-use registrationCumulative participation rate

European Conference on Quality in Official Statistics, 8-11 July 2008, Rome


Time use registration conclusions

Time-use registrationConclusions

  • Weekcycle is an important rhythm is our society

  • Estimations on population level for a synthetic week on basis of a 2-day registration is comparable with a 7-day registration, the sample size is nevertheless an important factor

  • Participation rate and mean time per participants can not be calculated for a weekcycle

  • To understand individual behaviour it is appropriate to collect information over 7 consecutive days

  • The actual length of the diary period relies on the purpose of the research

European Conference on Quality in Official Statistics, 8-11 July 2008, Rome


Time use registration future tasks

Time-use registrationFuture tasks

  • Try to find a method / circumstances to extrapolate participation rates

  • Make comparisons with international datasets with a larger sample size to test our findings and broaden our recommendations

European Conference on Quality in Official Statistics, 8-11 July 2008, Rome


  • Login