Accuracy and reliability

Overall accuracy

In most cases data is based on administrative registers which is going through a data revision by Statistics Denmark. The statistics is based on total counts.

Sampling error

Not relevant for these statistics.

Non-sampling error

As regard to calculation of the total numbers of courses, data quality is considered as good.

Activity under the Ministry of Culture is not covered by the statistics.

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

In the Course Participation Register all relevant course providers report data and therefore measurement for reliability is not calculated. Sometimes under reporting occurs the first years after a new activity has been reported. The most important source of inaccuracy is incorrect or insufficient registrations. The institutions can report supplementary data for previous periods, mainly the year before. The latest year is considered as being provisional. The opportunity of reporting supplementary data is used only in a few cases. Please note that data for institutions under Ministry of Culture are not included.

The courses on the vocational training are collected and checked by STIL and the information about the completion of the courses is associated with great uncertainty in the school year 2022-2023. STIL has stated that, as something new, the information about the courses comes from the study administrative systems. The number of course participants is considered to be correct, but the information on completion is not correct.

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

In few cases the respondents send corrected and supplementary data for previous years, therefore, when data of the latest year is published, the editions of the two previous years are revised.