For NVR, as far as I am aware Redbridge have only concentrated on Analogies, similarities, codes and series for NVR for the last five years. This is what I have been told by tutors and school.
My DS took the NVR exams on 12/12/2009 and there were only four timed sections as mentioned above. 75 questions in 39 min.***** However, we did prepare to be on the safer side.
VR Exam is on 9/01/2010. I think one should be prepared for all the types. Redbridge is more english based. Hence, sound knowledge of vocabulary is very important. I will post more in detail once the exams gets over.
English based question types:
Move a letter
Odd one out
missing three letter word
Same letter for two sets of word
The above is completey based on english vocabulary. Hence, it is highly recommended that one should read lots of clasic books. This not only helps to build the vocabulary it will also help if one is taking the KEGS exams.
Apart from the above you will also have questions that based on technique:
These are the ones where one can master because it's based on certain technique.
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Descriptive questions (For example age, train time etc)