... data, and did not take difficulty into account. This was a ... , add analytics data, and take difficulty into account. We finished the ... LR Beta:
1. The difficulty scaling wasn't very smooth ...
As far as I know it's all based on data generated by 7Sage's analytics. I'm more certain it's the case for the percentages than for the difficulty ranking as the latter could have been assigned by JY et al.
The new ones have clearer writing but my PT average dropped about 2 points compared to the older ones. They all reinforce the same concepts and the difficulty of the old Logic Games are great for prep.