The purpose of the study is to analyse the access to and use of the Internet, and to follow the development. Survey questions have been deleted and added from time to time, in order to reflect new aspects and developments. The survey is based on international cooperation, a common Eurostat questionnaire and methodological guidelines.
This survey is based on a European model questionnaire coordinated by Eurostat. The survey covers among other subjects - access to and use of the Internet and computers at home and at work, - type of internet connection used, - type of device used for internet access - e-commerce - motives and obstacles to Internet usage - use of advanced internet-services, - use of mobile internet - Internet security Result are calculated both for the population as a hole and for subgroups divided by sex, age, occupation, type of family etc. A number of questions concerning access are directed at households instead of the individual.
The results of the survey are grossed-up to ensure their representativeness. After collecting the data, the sample is grouped by a number of background variables, such as age and gender. Each answer gets a 'weight' that correct possible biases. The calculations are done by a regression estimator.
The survey is based upon simple random selection samples, and the results are therefore subject to statistical uncertainty. For the entire populations access to Internet the uncertainty is limited, since the degree of coverage is high. Uncertainty reflects variations in the collected data in comparison to the size of the sample. If all persons/families were identical with respect to access to and use of the Internet, then a sample size of 1 would in principle be adequate. The larger differences there are, the larger a sample is necessary to attain limited statistical uncertainty on the figures.
The survey is published annually and The results are usually published without delay in relation to the scheduled date.
The survey is harmonized with the EU model questionnaire, which is used in most member states.