I never came up with a hard list of what influences the AI and how they are influenced by different factors. I did discover though that just about everything influences them. Stuff that specifically might help though:
- Whether you are looking at the enemy or not.
- Which weapon you currently have active.
- If you are walking forward or boosting forward.
- How far you are from the enemy.
Those factors were the ones that seemed to have the most effect on pathing for the Ravens' test when I was TASing it. Specifically, moving slightly left of center and making sure to look slightly left seemed to influence the second Stork to get closer more than other factors. You could lose your mind trying to get the perfect Ravens' Test though, I almost did. Since the RNG resets for each mission, you should be safe to leave it and re-optimize later if you want.