Taylor et al. (2006) conducted an experimental study to investigate the effectiveness of an illness management program for people with chronic fatigue syndrome. The program included group meetings for four months and individual counseling for nine months. A total of 23 participants were assigned to complete the program and 24 participants were assigned to a control group. The COR gains and losses were applied and measured by the conservation of resources evaluation (COR-E), a measurement of resources developed by Hobfoll, Lilly, and Jackson (1991). Data were collected at three time periods: baseline, group meeting phase, and individual meeting phase. The results showed that people participating in the program reported increasing resource gain and decreasing resource loss, while people in the control group reported decreasing resource gain and increasing resource loss.