I can certainly understand his concerns. You can get a copy of both volumes of A Nation Deceived (the summary and the research reports) for free at this website:
http://nationdeceived.org/

We also used the Iowa Acceleration Manual as a tool for looking at all the assessment data objectively to see just whether our son was a good candidate to succeed with a grade skip or not. It was very helpful. You can pick up a manual from Amazon for about $20. Ask your library to get you a copy of Genius Denied. Good Luck!