Wellness Meets Superman: Health Fitness Corporation Achieving Savings by Making the World Spin Backwards
As the display shows (compare baseline years 2004 and 2005), Health Fitness Corp's program for Eastman Chemical started saving significant money even before the program started, which is only possible one of two ways. The first is by hiring Superman to make the world spin backwards. The second is to simply divide the population into participants and non-participants, and watch the former outperform the latter even without a program. Obviously (or at least obviously to everyone except Eastman Chemical, who paid for this), if you compare a bunch of motivated volunteers to a bunch of unmotivated non-participants, the former will outperform the latter.