The Girls Inc. study showed that attitudes and habits are not formulated in a four-hour program.
The four-hour program was scheduled Monday through Friday, noon to 4 pm local time.
At the peak of its popularity in the summer of 2001 up to a million calls were received over the course of a four-hour programme.
Fees start at $270 a month for a two-day, four-hour program, and go up to $1,150 a month for full-time enrollment.
At 3.15pm a four-hour programme was broadcast which was repeated until next afternoon.
"I've heard the O.J. verdict mentioned early and often," he said about three hours into the four-hour program.
The four-hour program is syndicated to over 200 radio affiliates in the United States and Canada.
The four-hour program featured interactive games that listeners played to win cash and other prizes.
The four-hour program includes a tour and Shaker music.
The four-hour program had an average rating of 24.5 and was seen by 39 percent of the viewing audience.