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Critical Appraisal

The Critical Appraisal section catches out clinical doctors more than any other part of the FRCEM SBA — not because it's hard, but because it's tested differently from the rest of the paper. This category gives you the focused, exam-ready stats and study-design knowledge needed to score full marks. Inside you'll find a structured guide to passing the FRCEM Critical Appraisal section, a plain-English explanation of p-values, confidence intervals, and the common biases tested, and a breakdown of the most common Critical Appraisal SBA questions with worked examples. You don't need to be a methodologist — you need to recognise study designs, interpret CIs and p-values correctly, spot the half-dozen biases the exam loves, and apply a small set of statistical concepts under time pressure. These guides give you exactly that.

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Critical Appraisal

Intention-to-Treat Analysis

EM FINAL EXAMS Critical Appraisal · Trial analysis Intention-to-Treat Analysis Analyse every participant in the group they were RANDOMISED to, regardless of…

emfinalexams3 min
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Critical Appraisal

Kaplan–Meier Curve

EM FINAL EXAMS Critical Appraisal · Survival analysis Kaplan–Meier Curve A step plot of the probability of remaining event-free over time that…

emfinalexams3 min
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Critical Appraisal

Hazard Ratio

EM FINAL EXAMS Critical Appraisal · Survival analysis Hazard Ratio The relative instantaneous event rate between two groups across follow-up. Definition From…

emfinalexams3 min
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Critical Appraisal

Likelihood Ratios

EM FINAL EXAMS Critical Appraisal · Diagnostics Likelihood Ratios How much a given test result shifts the odds that disease is present.…

emfinalexams3 min
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Critical Appraisal

Number Needed to Treat (NNT)

EM FINAL EXAMS Critical Appraisal · Statistics Number Needed to Treat (NNT) The number of patients you must treat to prevent one…

emfinalexams2 min
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Critical Appraisal

Sensitivity & Specificity

EM FINAL EXAMS Critical Appraisal · Diagnostics Sensitivity & Specificity How well a test detects disease when it is present (sensitivity) and…

emfinalexams3 min
Critical Appraisal

How to Pass the FRCEM Critical Appraisal Section

How to pass the FRCEM Critical Appraisal section: the small set of stats and study-design knowledge that delivers full marks under exam…

emfinalexams19 min
Critical Appraisal

P Values Confidence Intervals and Bias Explained Simply

P values, confidence intervals, and bias explained simply for FRCEM Critical Appraisal — plain-English definitions and the SBA-style traps to watch for.

emfinalexams18 min
Critical Appraisal

Most Common FRCEM Critical Appraisal SBA Questions

The most common FRCEM Critical Appraisal SBA questions, worked through with the reasoning examiners reward — and the trap answers candidates pick.

emfinalexams20 min

Stop reading. Start revising.

Put the strategy into practice with 40,000 explained SBAs and 20 timed mocks.

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