Does player IQ grow at a linear rate? i.e. will it take a player the same amount of time to move from D to D+ as it will take them to move from A to A+?

No. it takes MUCH more time for A to A+. Maybe 10 times more.

#

Iguana1's BBIQ Practice Minute Chart: These are the ranges
I've found based on the 4 seasons since the iq grading has
changed.
The number on the assumes a "fast" learner. WE of 80 and
GPA over 3.2. The number on the right is for a slower learner.
WE around 40, GPA under 2.5.
Of course there are extreme cases on both ends. I had a player
with a WE of 11 that took about 20% longer than the second
number.

*

F > D- 50-75
D- > D 50-75
D > D+ 50-75
D+ > C- 50-75 total F > C- 200-300
*

C- > C 100-150
C > C+ 100-150
C+ > B- 120-200 total C- > B- 320-500 total F > B- 520-800
*

B- > B 290-400
B > B+ 290-400 total B- > B+ 580-800 total F > B+ 1100-1600
*

B+ > A- 375-500
A- > A 575-775
A > A+ 450-625 total B+ > A+ 1400-1900 total F > A+ 2500-3500

nice job Weena.

When I first started people would tell me to look """ (here) for my answer,,, but being new I didn't even know where """ (here) was.

Nice of you to post Iggy's chart instead of just saying it's """ (here).

yeah thanks, I saw that before but for some reason thought it was a FT chart. good looks.

There is a ft chart right next to it in the same thread.