Usage of information and communication technologies in households

Statistical Office of the Republic of Serbia

Information Society Statistics unit.

Uros Rajcevic

Methodologist

Milana Rakica 5, Belgrade, Serbia

Survey data refer to the use of different information-comunication technologies and devices in households.

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The survey used the concept of "household". According to this concept household is group of persons who share the same living accommodation, who pool some, or all, of their income and wealth and who consume certain types of goods and services collectively, mainly housing and food. Single household also included. The survey does not include collective household.

Households.

Households with at least one member 16 to 74 years of age.

All households on terittory of Republic of Serbia without Kosovo.

2009-2022.

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Unit measures that are used in the survey: percent, number.

First quarter of the year for Usage of ICT in households.

Official Statistics Law.

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Official Statistics Law.

Official Statistics Law.

Statistical release and publications with results from survey are avaliable on the website of the Statistical Office of the Republic of Serbia, in the part "Release Calendar".

Release calendar for the current year is avaliable to public on the web page:

http:/www.stat.gov.rs/calendar/?a=278&s=

Survey result are available:

1) SORS web-site

2) Library

Publication and survey results are available on SORS web-site under same terms for all interested users. in case of specialt requests Price Policy of SORS will be implemented. 

Data are published annualy.

Survey results for usage of ICT in households does not have press release.

The book "Usage of information-communication technologies in the Republic of Serbia".

Most important indicators are available in database on SORS web-site. Users are able to download files to excel.

The Institute provides access to individual data without identifiers (anonymous data) which are available upon request of the user in accordance with the principles defined in the Official Statistics Law:

https://www.stat.gov.rs/media/2322/zakon_o_statisticie.pdf and the rules defined by the Rulebook on the manner and procedure of data provision produced by the Republic Statistical Office:

https://www.stat.gov.rs/en-US/o-nama/dokumenti

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Work in progress on setting up on new site of the Statistical Office of the Republic of Serbia.

A detailed control of the results is carried out before the results of the survey are published. Based on the Customer Satisfaction Survey, feedback was received on the quality and comprehensibility of published results.

The Methodological Manual provides guidelines and standards for the implementation of the surveys in the Member States. It is updated every year according to the changed contents of the model questionnaires.

Before publishing the results, detailed control is carried out by examining the results obtained. Through two user satisfaction surveys, feedback was obtained on the quality and comprehensibility of the published results of all surveys in the SORS, and included subject research.

RATEL, Government institutions, public sector.

User reviews and opinions were obtained through the Customer Satisfaction Survey 2013, 2015,2017.,2019, and 2021.

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In this research, we distinguish between two types of errors: sampling and non sampling.

The survey is conducted on a random sample. The sample selection box is based on the 2011 Census. The sample plan is defined in such a way that the grades for the main assessment domains are of satisfactory accuracy.

Of the non-sampling errors, there are:

• coverage errors resulting from the inaccuracy of the sampling frame formed on the basis of the 2011 Census;
• errors resulting from the exclusion of census circles with fewer than 20 households (cut-offs) recorded in the 2011 Census;
• Measurement and non-response errors that are inevitable but the instruments, organization of collection and data entry are such that these errors are minimized.

The sample for the survey is two-stage stratified, with census circles as primary and households as secondary units. The sample selection box for the first stage, is a list of census circles with 20 or more households, and for the second stage, lists of households for the selected census circles. The rating system corresponds to a selection procedure in which the units of the first stage are selected in proportion to the size and with repetition, and the units of the second stage are simply random without repetition. To make the estimates from the sample representative of the observed general population, each household in the sample was assigned a weighting (expansion factor). The baseline weighting resulting from the applied sample design was corrected for non-response and adjusted for population values ​​for 2022. Two weights were calculated. Household weight, which serves as an expansion factor for the data collected by the household questionnaire and the weighting for persons aged 16-74 over the years for the data collected by the individual questionnaire. The household weight was adjusted to the estimated number of households for 2022, applying the post-stratification method. The face weight was adjusted to the current demographic estimates for 2022, based on gender, 10 years of age, and completed school, using the post-stratification method.

The response rate of observation units (households and persons) is  90.6%. The reasons for non-response are: no contact with the household / person, refusal to cooperate, inability to cooperate due to language barrier, illness or other reasons and disregard of incomplete or poor quality questionnaires.

The baseline weighting resulting from the sample design applied has been corrected for non-response and adjusted for 2021 population values. Two weights were calculated. Household weight, which serves as an expansion factor for the data collected by the household questionnaire and the weighting for persons aged 16-74 over the years for the data collected by the individual questionnaire. The household weight was adjusted to the estimated number of households for 2021, applying the post-stratification method. The face weight was adjusted to the current demographic estimates for 2021, based on gender, 10 years of age and graduation using the post-stratification method.

The survey is being conducted in February, while the research results are published at the end of the third week of October.

All data are sent to Eurostat in time.

Previous surveys have been carried out at NUTS level 1, and since 2019 it will be implemented NUTS level 2.

Time series 2009-2022. For information: there are interrupt series, the reasons for the break of the series are:

- change the Eurostat questionnaire and eject certain variables from the questionnaire

- change the scope of certain variables, some variables are divided into two different variables, thus eliminating the possibility of a time series

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Survey is conducted on two-stage strtified random sample. Gross sample size is 2800 household, response rate is 90.6%, or 2537 households. Statistical data source.

Annual survey.

The survey is conducted through a telephone survey, (CATI) method of data collection on IST. The questionnaire was formulated according to the Eurostat methodology, where it was previously tested and accepted by all member states and candidates. The interviewer training is conducted according to the instructions for using the data entry program in IST.

We use EUROSTAT validation program.

In the research on the use of information and communication technologies in households, imputation of data is not applied, while it is systematically impossible for the respondent to not answer any question.

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