This dimension provides information about how precisely the statistics measure the true quantities of interest. Accuracy can vary greatly across collections and across data items within the same collection. It is important to assess the dimension and make a decision as to whether the information contained affects your needs.
Some of the limitations that might be written about are:
- the response rates for the collection,
- i.e. imputation rate on a particular data item,
- measures of sampling errors associated with various levels in the collection,
- the impact of revisions to data.