The data sample that we receive from all of our Alis schools for each qualification has to meet a strict set of criteria before it is published, so not every qualification will appear in your predictive or value added reports. The criteria include sample size (how many students are represented), number of schools represented and the strength of the statistical correlation. If a qualification's data sample does not meet the criteria it will not appear in your reports.
There are two possible baselines from which we produce the predictive and valued-added data for students: the average (I)GCSE score baseline and the Computer Adaptive Baseline Test (CABT) baseline. The data sample for both baselines is analysed separately and each sample must meet CEM’s criteria for publication. It is possible to see certain qualifications appearing in your reports from one baseline but not the other, both baselines or neither.
There are three lists of supported subjects that are included in our reports which are provided within the suite of value added reports.
- Average (I)GCSE score baseline 0-8 scale (A*-G grades)
- Average (I)GCSE baseline 0-9 scale (0-9 grades)
- Computer Adaptive Baseline Test (CABT)
You can find the lists of supported subjects HERE.
You will notice that the lists of supported subjects are not identical. This is because the exam result data that we receive for each qualification is analysed as three separate samples from the average (I)GCSE score baselines and the Computer Adaptive Baseline Test (CABT). Therefore, the baseline/s that your students have will inform whether or not all of their qualifications appear against their name in your reports.
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