The Writing sub-test structure

The task is to write a letter, usually a referral letter. Some alternative letter types are a letter of transfer and a letter of discharge. A letter to advise or inform a patient, carer or group is sometimes used in Pharmacy, Veterinary Science and occasionally for Speech Pathology and Occupational Therapy. Another task variation, with a different focus, is a written response to a complaint (for Radiography).

Along with the task instructions, you will receive stimulus material (case notes and/or other related documentation) which includes information to use in your response.

How is writing ability assessed in OET?


Your performance on the Writing sub-test is marked independently by a minimum of two trained Assessors. Neither Assessor knows what scores the other has given you, or what scores you have achieved in any of the other sub-tests.

Your performance is scored against six criteria and receives a band score for each criterion:

  • Purpose (Whether the purpose of the letter is immediately apparent to the reader and sufficiently expanded in the course of the letter)
  • Content (Whether all the necessary information is included and accurate for the reader)
  • Conciseness & Clarity (Whether unnecessary information is omitted so that the letter is an effective summary for the reader)
  • Genre & Style (Whether the register, tone and use of abbreviations are appropriate for the reader)
  • Organisation & Layout (Whether the letter is organised and well laid out for the reader)
  • Language (Whether the accuracy of the grammar, vocabulary, spelling and punctuation communicates the necessary information to the reader)

Download your OET Writing Criteria here

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In Writing, you will be asked to write one letter which will be graded based on six criteria. Learn what writing skills you will need and how to improve them.

Introduction to OET Writing All professions

Watch one of our OET Writing group tutorials for doctors as we discussed and analyse a referral case note for the patient William McGuire.

Writing a Referral Letter William McGuire

An overview of OET Writing, with a focus on how to write a discharge letter and step-by-step guidance. Suitable for Nurses and Doctors.

Writing a Discharge Letter Medicine and Nursing