Sociaal-culturele verschuivingen in Vlaanderen (SCV) (Socio-Cultural shifts in Flanders), Statistics Flanders
The practice of sports is monitored in the SCV survey by way of the following query:
“Do you practise sports? Sports should be understood in the broad sense and also includes walking or cycling
Sports diversity relates to the number of different sports practised by one person. In the SCV survey, this is monitored by way of the following open-ended question:
"Which sports do you practise?"
For each sport listed, the questionnaire subsequently inquires into the frequency with which that sport is practised, using the following question:
"How often do you practise sport x?
1: once a year
2: several times a year
3: once a month
4: several times a month
5: once a week
6: several times a week
The population of the SCV survey has changed over the years. The first survey was conducted in 1996. Until 2008, only Belgians were surveyed (selection from the National Register). From 2009 onward, the survey has also included non-Belgians. The surveyed age group has also changed. Up until 2000, the sample also included 16 and 17-year olds. From 2001 onward, the lower limit was set at the age of 18 years. Until 1999, 75 years was the upper limit, which was set at 85 years in 2000. Since 2009, the upper limit has been lifted. For reasons of comparability over time, the data on sports participation are based on the population of inhabitants of Flanders aged 18 years to 85 years who have the Belgian nationality.
Remarks on quality
The SCV survey ‘Sociaal-culturele Verschuivingen in Vlaanderen’ (Socio-Cultural shifts in Flanders) is an annual face-to-face survey conducted by way of a random sample survey among Dutch-speaking residents living in the Flemish Region and the Brussels Capital Region. The survey inquires into the opinions, beliefs and behaviours of the inhabitants of Flanders with regard to social and policy-relevant topics. Each year, some 1,500 exploitable interviews are taken. The response rate is around 60%, although this figure fell to 55% and 50% in the survey years 2017 and 2018 respectively.
Quality guidelines are meticulously respected, both in drawing up the questionnaire, the sampling, data weighing and in interviewer training. However, users should be aware that the percentages based on survey data are estimates of the corresponding population percentages within a given interval. The size of this interval depends on the percentage obtained and on the sample size. For a sample size of 1,500 respondents, the reliability interval for a reported percentage of 50% is approximately 5%, i.e. between 47.5% and 52.5%. For reported percentages of 20% or 80%, this interval is narrower, but for smaller groups (e.g. one level of education or one household type) the interval is larger.
All percentages and averages are weighed. The weights used in this respect are compensations for the over- or under-representation of certain categories. This over- or under-representation may be the result of sampling errors or differences in non-response, among other things.
Statistics Flanders: SCV survey