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MAPPS: Study of the Mediators and Predictors of Psychosis

10 November 2017

We are a group of researchers from the University of Surrey working in partnership with South West London and St. George's NHS trust. We are researching the factors involved in the development of unusual experiences such as those found along the psychosis spectrum. This study is also being conducted with individuals currently receiving treatment in early intervention services. We are asking for 18-65s from the general population to complete a set of online questionnaires taking 15-25 minutes.


  • 18-65 years old
  • English speaking

Take part in this study


Ethical approval

The study has been approved by the Faculty of Health and Medical Sciences at the University of Surrey, the NHS Research Ethics Committee, and the Health Research Authority (HRA).

The study is covered by the University of Surrey clinical trials insurance

About the researcher

Our names are Ali Shnyien and Michaela Archer, and we are researchers in the Psychology Department at the University of Surrey in Guildford. We each hold Graduate and Masters Degrees in psychology, and are taking our studies further by conducting this research for a Doctoral degree in Clinical Psychology. We each have over 6 years’ experience working in mental health and research.

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Academic study

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