The what percent?

From the Straight Dope Classic that ran today:

According to David Orme-Johnson, a researcher at Maharishi International University, "Thirty-one sociological studies conducted throughout the world document that the quality of life in society significantly improves when as little as the square root of one percent of a population practices TM-Sidhi Yogic Flying together in one place."

The square root of one percent? Is that ten percent, as in 0.10*0.10=0.01? Or, just as implausibly, does it mean (size of population affected) = 100 * (number of meditators)^2?