UK appraisal guidance is consistent about what it wants and silent about how to grade it. Doctors are asked for CPD that is relevant across their whole scope of practice, reflected on meaningfully, and sampled proportionately rather than logged exhaustively; no fixed credit total is prescribed, and the RCGP is explicit that a certificate demonstrates attendance without proving what was learned or changed. What the guidance does not supply is a working vocabulary for comparing one piece of evidence with another. This article proposes one: a six-stage ladder you can apply to any learning activity in about ten seconds. It is an iatroX educational framework, not a regulator-issued scoring system, and it deliberately grades evidence of learning, not the worth of the learning itself.
The ladder
Stage one, exposure: the clinician opened, attended or listened to something. A webinar certificate, a tracked page view, a podcast log. This is the floor of evidence: real, honest, and silent about everything except presence.
Stage two, engagement: the clinician actively worked through material. Completed module interactions, notes taken, cases worked. Engagement evidence shows effort was applied, though not what it achieved.
Stage three, assessment: knowledge or judgement was tested. A scored question set, a module post-test, a simulated consultation with marking. Assessment is the first rung that measures anything, and it converts learning from a claim into a result.
Stage four, remediation: a specific misconception was identified and corrected. Not just "scored 70 percent" but "believed X, which is wrong because Y, corrected against source Z". This is where evidence starts to describe learning rather than performance.
Stage five, retention: the correction was demonstrated again after a delay. A retest days or weeks later showing the gap stayed closed. Almost no conventional CPD evidence reaches this rung, which is precisely what makes it distinctive when it appears.
Stage six, application or impact: the clinician confirms an appropriate change in future practice, or supplies separate outcome or improvement evidence. Impact cannot be inferred from any score; it requires the clinician's own attestation or linked quality-improvement work, and it is where CPD evidence hands over to the other types of supporting information appraisal already collects.
What the ladder is not
Three boundaries keep the framework honest. First, it is not a regulatory hierarchy: the GMC's six types of supporting information, CPD, quality improvement, significant events, feedback and the rest, are complementary categories, not rungs, and nothing here ranks them. Second, higher is not always necessary: a certificate plus a genuine reflection is entirely legitimate CPD, and some valuable learning, a powerful talk, a corridor conversation that changed your view, will only ever be exposure plus reflection, which is fine. Third, the ladder grades the evidence, not the doctor: a portfolio does not need every entry at stage five; it needs a proportionate sample, with at least some entries demonstrating more than presence.
Using the ladder in practice
Two habits make it useful. When planning, aim each significant learning episode one rung higher than it would naturally land: after the webinar, take the post-test; after the post-test, note the specific error corrected; after the correction, schedule the retest. When curating for appraisal, pick a sample that spans the ladder: a few exposure-plus-reflection entries for breadth, and two or three entries that climb to remediation and retention, because those are the entries that demonstrate learning happened rather than assert it. A scored, remediated and retested learning record demonstrates more than a certificate of attendance alone; that sentence is the whole framework in miniature.
How iatroX maps onto the ladder
Declared interest: iatroX is built to make the upper rungs routine. A question session is assessment by construction; the Socratic Tutor's dialogue on each miss produces the remediation record, the misconception in your own words and its correction against cited guidance; spaced repetition supplies the delayed retest; and My CPD captures the sequence, with your reflection and any intended practice change attested by you, never inferred. The ladder, though, is deliberately tool-agnostic: a module post-test, a course MCQ, a colleague quizzing you at the whiteboard all climb the same rungs, and the framework is offered for exactly that general use, with attribution welcome and no permission needed.
Frequently asked questions
Is this ladder endorsed by the GMC or a Royal College?
No, and it does not claim to be. It is an educational framework consistent with the direction of current guidance, quality over quantity, reflection over accumulation, offered to make those principles operational.
Should I stop collecting stage-one evidence?
No. Exposure evidence documents breadth cheaply, and mandated training lives there legitimately. The point is proportion: a portfolio of nothing but stage one is thin, not wrong.
Does a high score count as strong evidence?
A high first-attempt score is assessment evidence of existing competence, which has real value, and it documents comparatively little new learning. The richest entries usually start with a wrong answer; our guide to exactly that is at /blog/from-wrong-answer-to-changed-practice-cpd-reflection-template.