The first test was the Group Bourdon Test. This is the test which most people find the hardest and I recommend that you spend most time practising. You need to find groups of four dots. There's a downloadable online tool:
https://www.railforums.co.uk/attachments/bourdon-zip.36183/. I initially started doing it online and then moved on to printing and doing them on paper. You do get used to the patterns of dots on the tool, and they are different on the actual test, although the skills are transferrable. There are various people on this forum who quote how many lines you need to complete and how many errors you can make to pass. I was doing about 9 or 10 lines on the printouts from the tool with only 1 or 2 mistakes per page and I passed. Be very sceptical of people who say you need to complete 14 or 15 lines with no more than one mistake! (Of course, some TOCs require enhanced testing, which may require slightly more.) There was also a practice section at the start. The practice grids in the information booklet were less helpful than the tool (using letters rather than dots). We then had a break while the test was marked. One person was asked into the interview room to be told that he failed so he was sent home. The next test was the Test of Everyday Attention (TEA-Occ). This measures attention to multiple things and how well you can multi-task. Part 1 required us to listen to beeps (some with low tones, others with 'high' but I'd call them moderate-to-low). You will need to count just certain tones (can't remember if it was low or high). An example is available here, but there weren't so many tones for each question:
https://traineetraindriverinfo.com/low-tones-test-track-1/ Part 2 required us to do some simple telephone directory work. I think it was finding companies in a particular trade with a rating of three stars and with a phone number with a particular area code. It wasn't rocket science and probably doesn't need much practising, but it is designed to make you work quickly. You might not finish and don't need to. Part 3 was the hardest, combining both part 1 and part 2. You hear number 1 read out and a number of beeps (only one tone this time). You need to write the number down when told. This continues. At the same time, you have a telephone directory task similar to part 2. You are told that both parts are of equal importance. You must use different pens for both tasks. When doing it, I got a good sense that I was truly multi-tasking. It's a good test, actually! The booklet gives you some activities to help you. Recognising symbols probably isn't too difficult for most people. If you have somebody who could play patterns of two tones on a keyboard or piano (written down first so the answers can be assessed), that might help you, and also if they can play similar tones while they asked you to do a reading task / telephone directory task / wordsearch. However, I didn't practise much for this test and I know some others didn't either, and we passed.
Got this from one of the other chats hope this helps