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Accuracy and reliability

Contact info

Personal Finances and Welfare, Social Statistics
Sofie Biering-Sørensen
+45 3917 3367

bosted@dst.dk

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Proposition of accomodation

Submitting data is required by law. The number of persons who use a type of accommodation as prescribed by section 110 of the Social Services Act during the year is measured fairly accurately.

Overall accuracy

The rate of uncertainty is estimated to be >5 per cent for duration of stays and the use of “Not stated” in some of the categories.

Sampling error

Not relevant for these statistics.

Non-sampling error

Duration of stay may be overrated for the latest statistical year and must be taken with reservations due to data insecurity, e.g. missing registration of check-out which is not ascertained until later. The institutions’ use of “Not stated” may also impact the accuracy of the statistics. If there are two subsequent check-ins or check-outs for a user in the same accommodation facility, a check-in or check-out will be inserted for the day after the first registration so that the stay will be registered as lasting one day. This rounding up rule means that the statistics probably overestimate the number of stays lasting one day. Failure to report whole stays may also impact 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

The rate of uncertainty is estimated to be >5 per cent for duration of stays and the use of “Not stated” in some of the categories.

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

Validation of previously submitted data is performed when errors are ascertained back in time.