The estimates used to calculate all progress-based headline measures are selected by the Sisra Administrator of each school within Sisra Analytics when publishing a Data Set or Assessment Collection as a report.
For KS4, Progress 8 is calculated based on Attainment 8 Estimates selected.
Similarly, SPI is calculated based on the Data Collaboration year selected, where this has been enabled for that particular dataset.
For KS5, the Value Added calculations are derived from the Value Added national data year selected for the cohort within each Sisra Analytics school.
To check which estimates are being used for a specific data set, click Settings > Data Collection Management.
Select the Key Stage and cohort you are working with from the dropdowns at the top of this page..
Then click on the desired Data Collection name
Here you will see the list of schools in the trust with this data pulling through, along with the publishing options selected in Sisra Analytics including 'A8 Estimates' and 'Data Collaboration' for KS4 or 'Value Added Data Year' for KS5.
We would recommend all reports in the selected cohort are published with the same estimates to ensure consistency with the figures. For current cohorts, we'd usually recommend publishing with the latest official A8 Estimates and VA National Data available, until the year relevant to that particular cohort becomes available. If the estimates need to be changed for any particular dataset, a Sisra Administrator in that school would need to republish that dataset within Analytics for this to be applied.
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