Yes, the purpose of the moderation is for the evaluators to reach one consensus score, following a moderation discussion between them. This is likely to involve one or more evaluators amending their score. Obviously, where scores are revised downwards, this can be a risky area. The notes of the moderation meeting need to clearly articulate and record how the moderation discussion developed and the basis on which the evaluator considered it appropriate to update his or her score.
There is no specific guidance on how to run a moderation, and the PCRs are silent on the point. As such, there is flex to design a moderation process as the authority considers fit, albeit that whatever process is stated must be adhered to and must not offend against the general principles of transparency, equal treatment and non-discrimination.