I do think Deborah Ruf has some percentiles/scores associated with her levels of giftedness, right? http://www.dirhody.com/discanner/levels.htm

that site has a chart with scores, but I think I've seen one which has the test name + score range; I think that is more meaningful when you are talking about fractions of a percent. Otoh I have to agree with Grinity none of these charts/descriptions or tests are going to line up perfectly with most kid's actual ability. Watching them over time, seeing scores over time, etc. your own instincts are what will reveal log more accurately.