Challenger Stan Olson was describing a program in the Boise School District, which he headed as superintendent until his retirement this summer, and said, "It's kind of like defending a dissertation - I'll have to tell you about that some day." That was a crack at Luna's lack of a doctoral degree in education - Luna has only a bachelor's degree in liberal arts with a focus on measurement science, while Olson has doctorate, master's, specialist and bachelor's degrees in education.