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What epidemiology sees — and what it cannot.
Question banks for Epidemiology in the Arab World, one chapter at a time. Thirty questions on Chapter 1 so far, each keyed to a learning objective and answered with its reasoning. More chapters follow as the course does.
Written for students of public health and epidemiology by Yahya M. Al-Farsi, Professor of Public Health and Epidemiology, Sultan Qaboos University. The book is open access (Cordelia Press, 2026, CC BY 4.0); the questions follow its chapters and use its cases: two patients in a Muscat health centre, outdoor workers in summer heat, a ministry report that forgot its denominator.
Chapter 1 — What Epidemiology Sees
Four groups of questions following the chapter's sections. Each is marked the moment you answer it, and every answer carries its reasoning and the section to re-read. The arithmetic items — risk ratio, risk difference, counts against rates — open their working.
Whole chapter, timed
Thirty questions, thirty minutes, no feedback until the end — closer to the conditions of an examination. Marking and full working come with your result.