@VulpesZerda I'm glad you asked! I think this is something useful (esp for people re taking the test wanting to know what section they want to improve on /study more for next time yet I don't see ETS advertising it that much). When you're in the main myGRE account, under "Scores" section, you'll see a link to "GRE diagnostic service". Then you enter some personal and test info and you'll be able to see it..
@Meglet Thanks for the insight! I was curious so I directly compared individual scores. We both got 5 wrong answers in the first section.
First section (answers wrong)
Him: 4 qs level 4, 1 q level 5
Me: 2 qs levels 5, 2 qs level 4, 1 q level 3
(Based on this first section breakdown, I'm assuming we got the same difficulty level on the second one if all questions within a section are weighted equally)
Second section (answers wrong)
Him: 3 qs level 4, 7 qs level 5
Me: 4 qs level 4, 5 qs level 5, 1 q level 3
So yea I still don't understand but oh well. I wouldn't bother writing to ETS, they are not the best at customer service..
Thanks again for your insights
*PS: Correction he got a 160 (84%) (not 161)