I think You should highlight that there is requirement for a part to be filled out by a close friend or relative of the candidate at start.
Not sure if your questions are hitting enough of the right points to detect an aggressive or insular personality or will capture a link to gaming. I don’t have time or qualification to suggest improvements atm but maybe others here could. There are courses in psychology relating to technology and perhaps the help of such academics would be of use if you are intending an in-depth study.
Here is one such course:
Think we had a naming game for another course on the boards so search forum if your interested.