as i said, there are more factors here. Theres a lot, I have to agree, that Paradox has not explained too well, that said, I didn't play the tutorial so i dont know if it is there.
Your governors play a HUGE ROLE in civilizing. Your tech researchers also play a large role, based on their attributes. Yes, the most important one is finesse, but other characteristics can IMPEND or SPEED up your research.
I get multiple events firing off within 20-30 years adding research to my overall required RP per level. I get 500 research in almost all the areas. The best way to acheive your higher research is, heh, don't expand. Or was with 1.0, I haven't played a full game with 1.1 yet. Which apparently should be even EASIER.
every characteristic and trait is important in some regard. Find out what those traits are, and hell, even check the triggers or events to see what traits you want to increase your research.
THAT said, I believe the buildings/attributes attached to the tech levels themselves are slightly odd. They may have historical basis, there I'm unsure, I didn't go through them and try and match them up.
I didn't say it was perfect, I just said it worked for me. Though I also did increase the tech modifier like most of you guys did, primarily because I don't really play this game for realism, but I don't complain. I fix the issue myself. Anyone who plays this game should learn basic elementary text editing. A lot of factors in this game are editable, and they can make for interesting happenings. For example, I increased the spread of civ from trade. That led to Atrebates trading with Rome!!! That caused them to expand to their nearby states, eventually becoming the most powerful nation in northern europe. (As I rule, I try not to conquer small nations *exceptions being on Italy, and Illyria), I take on the big guys.)
(Also referencing text editing doesn't mean someone can go "Just because you can fix it yourself, doesn't mean its okay, or that paradox shouldn't fix it." because, again, I think it does tend to lend to a more historically driven game. Think like you are back there, take into considerations - you were just conquered, and you have a high revolt risk, different religion and culture... who would you want being your governor? The guy who is an excellent administrator, and milks you for every last cent, or the guy who is a people person, and incredibly popular and easy going with the troops? You want that popular, easy going charismatic guy. He will set off events firing that will increase your civilizing rate, and or/ change culture/region/barbarian power.
Theres a suggestion, use your able administrators for roman provinces that are already acheiving. Use your people administrators for new provinces and rebellious ones.