Can somebody explain to me the idea of "tiers". I saw the US News 2007 ranking . They listed the top 100 and then tiers 3 and 4. Is he first 50 in the top 100 - tier 1, and the next 50 - second tier? Please let me know. It will help me a lot in making a decision to wich school I would like to attend.
Thank you

First, these are only the ABA approved schools. Second, the tier system is broken up as follows (I believe there are 180 ABA approved schools):

Tier 1: 1-50

Tier 2: 51-100

Tier 3: 101-150

Tier 4: 150 and below

Best