Revision may seem counterintuitive, especially because you won't be given any prior information about what sort of source may come up but it is still worth preparing for the HAT test.Due to changes in the structure of the HAT test, you now only have one essay to complete. This source based question is designed so that everyone is on an even starting point in that they will most likely not be familiar with the time period being discussed. Thus, in order to prepare for this question, you should start by picking a time period that you have not studied and start analysing a source from it. Focus on what you can learn for 15 minutes and note them down, don't worry about if you may be wrong about the historical fact as you are being tested on your source ability here. If you have made an inference which can be backed up by the source but is historically wrong, you will not be penalised. The second part of your revision should be about time and writing practice. Go back to your current history work and pick a source based question, give yourself 45 minutes to write out an answer to it in essay form. You should aim to be finished in 40 minutes and reading your work over for errors for the last 5 minutes.It is certainly possible to revise for the HAT test and I would highly encourage candidates to do so.