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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

N-of-1 Trial

EM FINAL EXAMS Critical Appraisal · Study design N-of-1 Trial A randomised, multiple-crossover trial run in a SINGLE patient to find the…

emfinalexams3 min
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Critical Appraisal

Randomised Controlled Trial

EM FINAL EXAMS Critical Appraisal · Study design Randomised Controlled Trial (RCT) Allocate participants by chance to intervention or control — the…

emfinalexams3 min
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Critical Appraisal

Case-Control Study

EM FINAL EXAMS Critical Appraisal · Study design Case-Control Study Start with the OUTCOME — take people who have the disease and…

emfinalexams3 min
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Critical Appraisal

Cohort Study

EM FINAL EXAMS Critical Appraisal · Study design Cohort Study Take groups defined by their exposure and follow them FORWARD in time…

emfinalexams3 min
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Critical Appraisal

Case Series & Case Reports

EM FINAL EXAMS Critical Appraisal · Study design Case Series & Case Reports A detailed description of one (case report) or a…

emfinalexams3 min
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Critical Appraisal

Cross-Sectional Study

EM FINAL EXAMS Critical Appraisal · Study design Cross-Sectional Study A snapshot — measure exposure and outcome at the SAME moment, in…

emfinalexams3 min
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Critical Appraisal

Hierarchy of Evidence

EM FINAL EXAMS Critical Appraisal · Study design Hierarchy of Evidence A ranking of study designs by how susceptible they are to…

emfinalexams3 min
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Critical Appraisal

Type I & Type II Errors

EM FINAL EXAMS Critical Appraisal · Statistics Type I & Type II Errors Concluding there’s a difference when there isn’t (Type I)…

emfinalexams3 min
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Critical Appraisal

Confidence Intervals

EM FINAL EXAMS Critical Appraisal · Statistics Confidence Intervals The plausible range for the true effect — and a direct read on…

emfinalexams3 min
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Critical Appraisal

Heterogeneity (I²)

EM FINAL EXAMS Critical Appraisal · Systematic review Heterogeneity (I²) How much the results of studies in a meta-analysis differ beyond what…

emfinalexams3 min

Stop reading. Start revising.

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