I agree that they need to be transparent with how the adaptive method generates a specific numerical score, but it can be done. For example:
With the NCLEX test that I took back in 1995 if you answered a question correctly the next question would be harder. If you answered incorrectly the next question would be easier. This pattern would repeat until you were getting consistently getting 50% of the questions correct and 50% wrong. The level of difficulty of the questions at which the 50-50 point was reached determined whether you passed or not. So to generate a specific numerical SAT score one might use the level of difficulty at which the 50-50 point was reached. With the present setup you would have to have 800 levels of difficulty which is a bit overly fine a graduation (not impossible, but not easy), - however you could certainly do it with 100 levels of difficulty and then the SDAT scores would be 1 to 100.
What you describe is great as a pass-fail test. But, the black-box of adaptive scoring isn't clear how it would give 400-800 scores.
I agree that they need to be transparent with how the adaptive method generates a specific numerical score, but it can be done. For example:
With the NCLEX test that I took back in 1995 if you answered a question correctly the next question would be harder. If you answered incorrectly the next question would be easier. This pattern would repeat until you were getting consistently getting 50% of the questions correct and 50% wrong. The level of difficulty of the questions at which the 50-50 point was reached determined whether you passed or not. So to generate a specific numerical SAT score one might use the level of difficulty at which the 50-50 point was reached. With the present setup you would have to have 800 levels of difficulty which is a bit overly fine a graduation (not impossible, but not easy), - however you could certainly do it with 100 levels of difficulty and then the SDAT scores would be 1 to 100.