More smoke and mirrors: Fifteen further reasons to doubt the effectiveness of headspace.

The available evaluations indicate that headspace does not deliver therapy of adequate duration that results in clinically significant improvement. Most evaluations have used either short-term process measures or uncontrolled satisfaction surveys, and where there have been data on outcomes using standardised instruments, findings have been disappointing. Costs are poorly quantified and probably underestimated. Even so, headspace as a primary care intervention costs twice as much as a mental health consultation by a general practitioner and, depending on the assumptions, may not be cost effective.