The SCA’s three marking domains, explained

A consultation-based exam could, in principle, be marked with a single overall grade. The SCA is not: every case is marked separately in three named domains, and how well you understand what each one is actually looking for changes how you should spend your practice time. This guide sets out what the three domains cover, why one carries more weight than the other two, and how to rehearse each of them deliberately rather than treating a consultation as one undifferentiated performance.

The three domains

Every SCA case is graded across Data Gathering and Diagnosis, Clinical Management and Medical Complexity, Relating to Others. Data Gathering and Diagnosis and Relating to Others are each worth up to 3 marks, graded on a four-point scale from a clear fail to a clear pass. Clinical Management and Medical Complexity is graded on the same four-point scale, but carries a weighting of ×1.5, worth up to 4.5 marks — the only domain that carries extra weight.

• Data Gathering and Diagnosis (DG&D) — up to 3 marks, weight ×1.
• Clinical Management and Medical Complexity (CM&MC) — up to 4.5 marks, weight ×1.5.
• Relating to Others (RTO) — up to 3 marks, weight ×1.

What each domain actually rewards

Data Gathering and Diagnosis covers the history-taking and clinical reasoning that happens before you commit to a plan. The RCGP’s own published feedback statements for this domain describe, in concrete terms, what falls short: data gathering that would not be enough to assess the problem safely, information already in the record that goes unused, psychological or social information that is missed, an approach that is unsystematic or badly prioritised when a case presents more than one problem, findings whose implications are not followed through, differential diagnoses that are not properly generated or tested, and a final diagnosis or decision that is illogical, incorrect or incomplete. In short — did you gather enough, use what you already had, and reason your way to a sound conclusion.

Clinical Management and Medical Complexity covers what you actually do about the problem once you understand it. Its feedback statements are just as specific: referral decisions that do not reflect current practice, inappropriate prescribing, unjustified investigations, inadequate attention to prevention, health promotion or rehabilitation, weak management of risk, insufficient consideration of co-morbidity, uncertainty handled poorly — including the patient’s own uncertainty — inadequate follow-up, continuity or safety-netting, and ineffective time management within the consultation itself. Time management sits inside this domain specifically, which is one more reason the clock matters as much as the medicine.

Relating to Others covers how you conduct the consultation as an interaction with a person, not only a problem to be solved. Its feedback statements cover communication skills including non-verbal cues and active listening, exploring the patient’s own agenda, health beliefs and preferences, responding to their individual circumstances and cultural context, adapting explanations to what they need, avoiding a judgemental approach, showing adequate respect and sensitivity, taking ownership of decisions rather than deflecting them, recognising teamwork and other people’s roles, and recognising safeguarding concerns. It is easy to assume this is the domain a competent doctor will pass without trying — and it is often where a rushed, task-focused consultation quietly loses marks.

Why the ×1.5 weighting changes where you focus

Clinical Management and Medical Complexity is worth more than the other two domains because it maps onto more of the curriculum than data gathering or interpersonal skill on their own. That is not a decorative detail — it means a case where you build excellent rapport and take a thorough history, but produce a vague or generic plan, will still come up short overall. It is worth rehearsing the management plan as deliberately as the history: say the actual plan out loud in every practice case, including what you would investigate, refer, prescribe or safety-net, rather than trailing off once the diagnosis feels settled.

The circuit gets the verdict, not the case

The RCGP marks the circuit, not each case in isolation — all 12 cases’ marks are combined into a single result, so one case that goes badly in a domain does not fail you outright. The college does not fix a single pass mark in advance either: it sets the mark for each sitting using borderline regression, a statistical process that accounts for how that particular circuit performed, rather than a number fixed in advance. A candidate partway through a circuit has no way to know their result from any one case, which is exactly why holding a consistent standard across all 12 matters more than being outstanding in any single one.

How to practise each domain out loud

• For Data Gathering and Diagnosis, say your differential and your reasoning out loud at the end of each practice case, before you look anything up — the domain rewards visible reasoning, not just a right answer.
• For Clinical Management and Medical Complexity, force yourself to state a complete plan every time, including safety-netting and follow-up, even in a case that felt straightforward.
• For Relating to Others, practise checking the patient’s own agenda and understanding explicitly, rather than assuming a clear history means they feel heard.
• Review your practice feedback by domain rather than as a single headline result, so you can see which of the three needs the next block of practice.
• Run cases back to back rather than one at a time — a full 12-case circuit tests whether you can hold a standard across all three domains from the first case to the last, not just once.

ZWIP grades every practice case in these same three domains — Data Gathering and Diagnosis, Clinical Management and Medical Complexity, Relating to Others — with Clinical Management and Medical Complexity weighted at ×1.5, exactly as the real exam weights it, so your feedback tells you which domain to work on next rather than just whether the case went well overall. Register free to run a case under exam timing and see your marks broken down by domain.