Original sentence: In a random survey done at Stanford Research Institute in 1971, every 20th member of the approximately 40,000 individuals on the Students International Meditation Society's (the branch of the organization designated for teaching students) mailing list were mailed a survey.Of the 1,900 people surveyed, 47 percent responded
Edited sentence: A study done at SRI International published in 1985 was based on a 1971 random survey of 1,900 people practicing the Transcendental Meditation technique.Of those surveyed, 47 percent responded