Therapist effects in randomised controlled trials: what to do about them.

  title={Therapist effects in randomised controlled trials: what to do about them.},
  author={Stephen J. Walters},
  journal={Journal of clinical nursing},
  volume={19 7-8},
AIMS AND OBJECTIVES The aim of this study is to describe and compare three statistical methods to allow for therapist effects in individually randomised controlled trials. BACKGROUND In an individually randomised controlled trial where the intervention is delivered by a health professional it seems likely that the effectiveness of the intervention, independent of any treatment effect, could depend on the skill of the health professional delivering it. This leads to a potential clustering of… CONTINUE READING

From This Paper

Figures, tables, and topics from this paper.


Publications citing this paper.
Showing 1-7 of 7 extracted citations


Publications referenced by this paper.
Showing 1-10 of 18 references

Analysis of Longitudinal Data, 2nd edn

PJ Diggle, P Heagerty, K-Y Liang, SL Zeger
View 8 Excerpts
Highly Influenced

Medical Statistics. A Textbook for the Health Sciences, 4th edn

MJ Campbell, D Machin, SJ Walters
View 2 Excerpts

Random Effects Models to Allow for Clustering in Individually Randomised Trials

KJ Lee
PhD thesis, • 2005
View 3 Excerpts

A randomised , controlled , tripleblind trial of the efficacy of homeopathic treatment for chronic fatigue syndrome

H White
Journal of Psychosomatic Research • 2004

Similar Papers

Loading similar papers…