@3scoutsmom, thank you for this info. I’m really having trouble interpreting all this. Sounds like the NMS selection index does an equal weighting of reading, writing, and math, but the new PSAT does equal weighting of math at 50% and writing+reading at 50%. Without regard to the NMS contest, do you know if the old PSAT equal weighted each section when compiling the total score -therefore the PSAT is making a substantial change in how it weights the sections for the total score?
I can’t believe more of these sites with ‘predictive scores’ for the NMS Class of 2017 cutoffs have not yet updated based on this information. I know that you linked to an official doc from college board, but have you seen any documentation from the NMS people that confirms they are equal weighting the sections for cutoff qualification vs using the new PSAT total score?