I know his related stat is diligence.
What part are you having the most trouble with? The stats, or getting Ted's bar up high enough, or are you working on clues, also?
The most important thing I found was to pace yourself well. You want to make sure you've experienced all the scenes by the end. If you haven't and a scene is missing, it won't matter if you've gotten everything maxed, because there isn't enough time to play the missing scenes. The scenes have their own schedule too -- some play on certain days, or with a certain number of days between them, so you need to get enough time for them.
I'm running out for the day now, but will check back later to help out more if no one else has answered by then!