Accuracy and reliability
Contact info
Science, Technology and Culture, Business StatisticsChristian Törnfelt
+45 39 17 34 47
Get as PDF
Reporting to the museum statistics is voluntary, so the statistics are not fully comprehensive. Several of the smaller museums do not have the resources to report to the statistics. There are also museums that are not state aid that have asked to be exempted from receiving a form.
In 2016, schedules were sent out to 430 museum departments. In 2017, forms have been sent out to approx. 400 museum departments. In 2018, forms have been sent out to approx. 380 museum departments. In 2019 forms have been sent to approx. 370. The reason for sending fewer forms is due, for example, to the fact that museums close, exempt from the survey or have wanted to receive one report despite having several places. In 2020 forms have been sent to approx. 380 museum departments. In 2021 forms have been sent to approx. 460 museum departments.
Overall accuracy
Reporting is voluntary. Therefore, some museums do not choose to report. All state-supported and state-recognized museums participate in the survey and the precision is about 100 per cent. For 2022 there was only one museum that did not report to the statistics. Data for the museum based on the report for 2021 was imputed.
The total activity at the Danish museums is supposed to be underestimated by approx. 5 pct. The response rate is in 2017 at 82 per cent, but all the state-recognized and state-owned museums have reported to the statistics. In 2018, the response rate overall is 86 per cent. All state and state-recognized museums have the answer. In 2019 the response rate is 90 per cent and all the state and state-recognized museums have answered to the statistic. In 2020 the response rate is 88 per cent and all the state and state-recognized museums have reported to the statistic. The response rate for 2021 is 80 per cent. The response rate for 2022 is 83 percent for all museums.
Sampling error
No sample uncertainty has been calculated for this statistic. The state-supported museums are the response rate 100 per cent. As these museums cover the vast majority of activity in the area, the sample uncertainty is assessed to be limited.
Non-sampling error
The number of annual opening hours can, of course, be difficult to calculate for some museums. In addition, some museums have changing museum categories and museum types, as it is not always the same person who reports to the statistics and there may be confusion over, for example, what the museum type is other state aid or not. But the questionnaires is prefilled with last years answers to prevent uncertainty.
Quality management
Statistics Denmark follows the recommendations on organisation and management of quality given in the Code of Practice for European Statistics (CoP) and the implementation guidelines given in the Quality Assurance Framework of the European Statistical System (QAF). A Working Group on Quality and a central quality assurance function have been established to continuously carry through control of products and processes.
Quality assurance
Statistics Denmark follows the principles in the Code of Practice for European Statistics (CoP) and uses the Quality Assurance Framework of the European Statistical System (QAF) for the implementation of the principles. This involves continuous decentralized and central control of products and processes based on documentation following international standards. The central quality assurance function reports to the Working Group on Quality. Reports include suggestions for improvement that are assessed, decided and subsequently implemented.
Quality assessment
The report to museum statistics is voluntary. For the state and state-renowned museums the response rate is about 100 per cent. The Agency for Culture and Palaces has registered all state museums and state recognized museums. Up to and including 2015, Statistics Denmark has maintained a population of other museum types through listings on websites, specialist books, etc. In order to create a more consistent base, the other museum types are defined as all units registered in the museum industry from the Statistics Denmark Business Statistics. The change affects the calculation of the activity of the non-state-supported museums and the museums that receive state aid from government agencies other than the Ministry of Culture. Thus, the total visitor numbers for the museums will also be affected by the change.
The state museums and state recognized museums have been included and delivered data to museum statistics both before and after the reorganization. They cover 78 per cent of the total number of visitors to museums in 2016. The method is further adjusted by the fact that for museums that did not report to the statistics in 2016, imputed values are based on their reporting in 2015 if the museum has reported to the statistics this year.
Data revision - policy
Statistics Denmark revises published figures in accordance with the Revision Policy for Statistics Denmark. The common procedures and principles of the Revision Policy are for some statistics supplemented by a specific revision practice.
Data revision practice
Only final statistics is published.