Enhanced age assurance

What the clause says

Enhanced assurance is a high point on the scale. The public working draft on benchmarking gives it an external benchmark of at least ninety-nine point nine per cent classification accuracy.

What it supplies to a comparison

At this level the test design dominates the result. A small or convenient sample cannot support the figure, and the report has to show the uncertainty around it.

Evidence to keep

• The sampling frame and the achieved sample by age band.
• The uncertainty analysis and the repeat run.

What the evidence looks like

For 6.1.4, the first artefact is The sampling frame and the achieved sample by age band.. The second is The uncertainty analysis and the repeat run.. If 6.1.4 has no first artefact, the practice is unproven at 6.1.4, and the report should record the absence rather than infer the practice from a policy.

Questions for the provider

1. Can the sample detect a failure at this level?
2. What happens to the figure when the nearest-threshold cases are counted separately?

How it connects to the draft

Enhanced age assurance belongs to 6 indicators of confidence, and it gives the analysis one fixed point: At this level the test design dominates the result. A small or convenient sample cannot support the figure, and the report has to show the uncertainty. A comparison that cannot place a result against 6.1.4 is measuring something the framework has not defined, and the report should say so.

In the register, 6.1.4 is read beside the unit that tests it, and where it sets an objective rather than a number, that unit turns the objective into a question and an evidence artefact.