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Voice Impact Scale (VIS)


There are lots of research studies trying to develop new therapies for people who hear voices. These therapies aim to reduce the distress that a lot of people experience when they hear voices, but at the moment we do not have any reliable ways to measure what effect these therapies have – this means we cannot be sure that a therapy is working well.

This study aims to develop a questionnaire that can be used to measure the impact of voices on the person hearing them. The University have developed an initial draft of this questionnaire with help from researchers, clinicians and other people who hear voices.

What is involved?

All we would like you to do is complete four questionnaires for us. We estimate it will take 10 to 15 minutes to complete them. These questionnaires will ask you about your experience of hearing voices, as well as some more general questions about your emotional wellbeing. There will also be some space at the end for you to give your feedback on what it was like to take part in the study and complete the questionnaires.  

Inclusion Criteria:

  • ≥18 years old

  • Have been hearing voices for at least a year    

  • Meet diagnostic criteria (DSM 5) for a psychosis spectrum condition (schizophrenia, schizoaffective disorder, delusional disorder or psychosis not otherwise specified) as verified by a mental health practitioner


To take part in this online survey visit this website and use the password seaside.