Mean scores for positive changes of two groups. At Time 2, after the NET group underwent the treatment, their positive change score was significantly higher than the score at Time1, and there was no change for WL group. At Time3, after the WL group completed the treatment, their positive score increased significantly. The effect of two groups maintained in Time 4 (2-month follow-up). Error bars indicate standard errors.
Zang et al. BMC Psychiatry 2013 13:41 doi:10.1186/1471-244X-13-41