It needs to analyse the strengths and weakness of the data collection method, the data reliability/validity, whether the findings answer the research questions and if they’re related to theories or previous research. The commentary should also analyse which aspects of the research merit further enquiry and if there are suggestions for further research.
All applicants go through a series of tests that check their level of English and knowledge of formatting styles. The applicant is also required to present a sample of writing to the Evaluation Department. If you wish to find out more about the procedure, check out the whole process.