STATISTICAL LINKAGE KEY
Identification of unique child records can be achieved through the SLK to identify linking child episode records. The SLK can only provide estimated counts of unique child records as it is possible for two or more children to have coincidental identical SLKs. The application by data providers of a child/client database, which contains across year child details including name, date of birth and address information for each child in the data set can further assist in identifying coincidental links of SLK. This process only assists in the identification of coincidental links within a jurisdictional data submission for the Collection.
Consistent with the 2012 methodology, in 2013 the ABS utilised an 'SLK Match Code' to support improved accuracy of unique child counts. An SLK Match Code is assigned by data providers to a child only where two or more episode records are related to that child. The SLK Match Code facilitates the correct handling of scenarios where identical SLKs belong to two or more children.