Searching how persons use their time all day long,
Determining differences on using time of the different population groups in terms of characteristics of the gender, age group, work status etc.,
Obtaining data helping to develop estimations of the gross domestic product in national accounts,
Obtaining data which is internationally comparable qualifications on time use issue
Household:The household is a group consisting of one or several persons and live in the same house,meet with their basic needs ,participate in household services and management irrespective of the existence of a family tie.
Responsible of the Household: Responsible of the household is the adult member of household and is responsible for management or livelihood of the house and has the most true information on social-economics status of the household and personal characteristics of the individual living in the house.
Individual: Individual forms society and is independent however one takes on a new significance with society,has a presence of its own and is person having identity. Persons who are 18 and over and member of the household in the survey are accepted as individual.
Average Activity Time: Average Activity Time is average value in 24 hours of total time spent by individual for any activity. This period is average taken over all people and all year(work days and weekends as well as period of the holiday).
· Daily activity classification(HETUS Activity Coding List) recommended by EUROSTAT for questionnaire of time use survey on the classification of the daily activity of the household members,
· "Statistical Classification of Economic Activities in European Community"” (NACE, 2. Rev.) in order to classify economic activities of employed persons,
· "International Standard Classification of Occupations" (ISCO, 08) WAS used for classification of occupations.
Geographical area covered: All settlements in Turkey were covered in sample selection.
Address framework used in sample study of the survey was "National Address Database (NAD)"whose updating forming base of "Address Based Population Registration System (ABPRS)" completed in 2007.
The last updating date of address framework was June 2014 and all localities was in the structure of 2014 administrative division.
By considering qualifications of address defined as "filled house"," empty housing" and "housekeeper's flat" in NAD, addresses in which at least one individual stated to sit as permanent residents and matching with ABPRS was used as framework.
First Stage Sampling Unit: It is clusters composing of the average 100 addresses.
Second Stage Sampling Unit: It is households residing in the address selected from clusters in sampling.
Observation Unit: While in 2006 application, individuals age of 15 and over were taken as observation unit, in 2014-15 application individuals age of 10 and over were taken.
Analysis unit: It is the level of person-time unit. Level of the time unit was evaluated at 2 groups as "weekday" and "weekend".
Estimation size: While in 2006 application, as estimation size Turkey in general with rural and urban areas were taken , in 2014-15 application Turkey in general was taken.
Sampling method: Two stage stratified cluster sampling has been used.
Stages of the Stratified: Although estimation size was total of Turkey, separation of urban-rural was considered as design stratify. Accordingly, settlements whose population was 20 000 and under was taken as "Rural", settlements whose population was 20 001 and over were taken as "Urban".
Sample Size: It was applied on total of 11 440 sample households throughout Turkey with average of 880 households in 13 months, including 4 weeks per them. First application of the study was applied on total of 5 070 sample households with average 390 households per month throughout Turkey 1 January-31 December 2006.
Weighting: Weighting of Time Use Survey were performed with the following steps:
· Computing design weights depending on the selection probabilities of clusters
· Computing adjustment coefficients of unresponsiveness based on cluster,
· Integrative Calibration,
· Pruning weights in order to decrease outliers at the sampling weights (Trimming), Overall Inflation Factor.
The field application of the study of which first application had been applied in 2006 was conducted in the period of 1 August 2014 - 31 July 2015.
Application Method: Two different methods were used together in the field application of the Time Use Survey:
· By interviewing face to face with household individuals, queries in both household and individual questionnaires were done and entry of the data was performed by using tablet pc.
· It was provided that individuals saved their daily activities on diaries during two days which one was weekday other was weekend by individuals aged 10 and over and after first checking of diaries received from houses entry of the data was provided via programme developed in web environment; all kinds of encoding process(economic activities, job, daily activities, place of activity etc.) was done during the entry of the data.
· Weekly Schedule of Working Time was filled by individuals who were 15 and over in the household. Relevant persons filled the charts for 7-days period since the first day determined as diary filling day.
Organization of the Field Application:
Every household was visited 3-5 times on average during the field application. First visiting was done before the first diary filling day, and households were informed on the aim, importance, general content and application method of the survey.
The second visiting was done before the first diary filling day also, questions of individual and household questionnaire were asked. Information about the day and the way of filling diary of activities and Weekly Work Schedule were given to individuals. Additionally, diaries (2 diaries, one was filled in 'weekday' and other was filled in 'weekend' day) and Weekly Work Schedules are left to individuals aged 10 and older.
The third visiting was done after two days from first diary filling day and first diaries filled by household individuals were checked in detail in this visiting; deficiencies were completed by interwiewing with individuals and diaries were received. By checking charts of Weekly Work Schedule, individuals were reminded that they had to continue to fill these charts.
The fourth visiting was done after two days from second diary filling day and second diaries filled by household individuals were checked in detail in this visiting; deficiencies were completed by interwiewing with individuals and diaries were received. If the charts of Weekly Work Schedules were completed, they were received by checking.
In the fifth visiting Weekly Work Schedules which had not been finished yet in the previous visiting were received by checking. The numbers of the visiting could change for the unusual cases as becoming a suspension for day of the keeping diary.
4 basic questionnaires were used in the survey:
– Household Questionnaire
– Individual Questionnaire (individuals aged 10 and over)
– Diaries (Week day and Weekend day)(individuals aged 10 and over)
– Weekly Work Schedule (individuals aged 15 and over)
Household questionnaire was filled by interviewing with a household individual who is 18 and over and who can give information on households. Individual questionnaires and daily data are complied from individuals aged 10 and over in the household.
While Individual Questionnaire was applied on individuals aged 6 and over in 2006 application, individuals aged 10 and over were asked in 2014-15 application. Moreover, Aged Care questions were added to Individual Questionnaire in 2014-15 application unlike 2006.
While diaries were filled by individuals aged 15 and over in 2006 application, they were filled by individuals aged 10 and over in 2014-15 application. Filling the diaries were provided by recording all daily activities at 10 minutes intervals for 24 hours by all individuals who were 10 and over and living in sample households for one weekday and one weekend day including two days.
HETUS was taken generally for the survey and as guideline which was the recommended daily activity /place of activity classification by EUROSTAT for time use questionnaire in terms of providing international comparability. Almost 1200 different activities were included in this classification under 10 main activities title for 2014-2015 TUS.
Place of activity codes were added to diaries in order to learn where activities were done in 2014-15 application differently from 2006 application.
Reference and application period:
Our institution firstly conducted Time Use Survey in the period of the 1 January-31 December 2006 in 12 months duration throughout Turkey which was carried out for intervals of 5-10 years that changes from country to country. The second application was applied in 1 August-31 July 2015 with 13 months duration.
It was applied on total of 11 440 sample households throughout Turkey with average of 880 households in 13 months, including 4 weeks per them.
Seasonal adjustment: Data are not adjusted for seasonality.
Geographic detail: Estimation of the separation of the Turkey in general with rural and urban areas was produced in 2006 application. On the other hand, that estimation for Turkey in general was produced in 2014-2015.