The legislation also asks that UW-Madison’s Value-Added Research Center provide the new board a list of alternative tests “acceptable for statistical comparison” with the tests adopted by the superintendent. It also requires the research center to work with the board and DPI to review alternative tests proposed by schools, and asks that it equate the scores between the different tests. Brad Carl, associate director of the center, said while it’s possible to do that, the most accurate way to compare test takers is to have all students taking the same test on the same academic standards.