The Inflating Impact of Waiting-List Controls on Effect Size Estimates

Front Psychiatry. 2022 Jun 22:13:877089. doi: 10.3389/fpsyt.2022.877089. eCollection 2022.

Keith R Laws¹, Luca Pellegrini^{1

2

3}, Jemma E Reid¹, Lynne M Drummond^{1

4}, Naomi A Fineberg^{1

4

5

6}

¹ School of Life and Medical Sciences, University of Hertfordshire, Hatfield, United Kingdom.
² Hertfordshire Partnership University NHS Foundation Trust, Welwyn Garden City, United Kingdom.
³ Centre for Psychedelic Research, Imperial College London, London, United Kingdom.
⁴ South West London and St George's NHS Trust, London, United Kingdom.
⁵ Hertfordshire Partnership University NHS Foundation Trust, Hatfield, United Kingdom.
⁶ University of Cambridge School of Clinical Medicine, Cambridge, United Kingdom.

No abstract available

Keywords: meta-analysis; moderator analyses; obsessive compulsive disorder (OCD); psychological therapies; waiting list control groups.