Measuring common responses to psychosis

Assessing the psychometric properties of a new measure

Sarah Tully (Corresponding Author), Adrian Wells, Melissa Pyle, Jemma Hudson, Andrew Gumley, David Kingdon, Matthias Schwannauer, Douglas Turkington, Anthony P. Morrison

Research output: Contribution to journalArticle

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Abstract

Responses to psychotic experiences are central to cognitive models of psychosis. The current study aimed to develop and validate a self-report measure of common responses to the experience of psychosis. This measure is needed as cognitive and behavioural responses are implicated in the maintenance of psychosis, but there is currently no measure that comprehensively assesses these maintaining factors. The Measure of Common Responses to psychosis (MCR) was developed and utilised in a sample of 487 participants who met criteria for treatment-resistant schizophrenia. Principal components analysis using data from 287 participants reduced the initial item pool of 31 items to 15 items with a three component structure. The components represented social control and reassurance seeking, threat monitoring and avoidance and conscious self-regulation attempts. Confirmatory factor analysis using data from the remaining 200 participants generally supported this three factor structure. The three subscales were found to have good internal consistency and convergent validity. The MCR, therefore, appears to be a useful tool to identify and monitor response styles, and could be utilised in further research to increase our understanding of the complex relationships between responses, symptoms and distress. It can also be used in clinical practice to elicit information that will be helpful in the psychological formulation and treatment of psychosis.

Original languageEnglish
Pages (from-to)131-136
Number of pages6
JournalSchizophrenia Research
Volume181
Early online date13 Oct 2016
DOIs
Publication statusPublished - Mar 2017

Fingerprint

Psychometrics
Psychotic Disorders
Principal Component Analysis
Self Report
Statistical Factor Analysis
Schizophrenia
Maintenance
Psychology
Research

Keywords

  • schizophrenia
  • psychosis
  • safety-seeking behaviors
  • coping
  • self-regulation

Cite this

Measuring common responses to psychosis : Assessing the psychometric properties of a new measure. / Tully, Sarah (Corresponding Author); Wells, Adrian; Pyle, Melissa; Hudson, Jemma; Gumley, Andrew; Kingdon, David; Schwannauer, Matthias; Turkington, Douglas; Morrison, Anthony P.

In: Schizophrenia Research, Vol. 181, 03.2017, p. 131-136.

Research output: Contribution to journalArticle

Tully, S, Wells, A, Pyle, M, Hudson, J, Gumley, A, Kingdon, D, Schwannauer, M, Turkington, D & Morrison, AP 2017, 'Measuring common responses to psychosis: Assessing the psychometric properties of a new measure', Schizophrenia Research, vol. 181, pp. 131-136. https://doi.org/10.1016/j.schres.2016.10.015
Tully, Sarah ; Wells, Adrian ; Pyle, Melissa ; Hudson, Jemma ; Gumley, Andrew ; Kingdon, David ; Schwannauer, Matthias ; Turkington, Douglas ; Morrison, Anthony P. / Measuring common responses to psychosis : Assessing the psychometric properties of a new measure. In: Schizophrenia Research. 2017 ; Vol. 181. pp. 131-136.
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abstract = "Responses to psychotic experiences are central to cognitive models of psychosis. The current study aimed to develop and validate a self-report measure of common responses to the experience of psychosis. This measure is needed as cognitive and behavioural responses are implicated in the maintenance of psychosis, but there is currently no measure that comprehensively assesses these maintaining factors. The Measure of Common Responses to psychosis (MCR) was developed and utilised in a sample of 487 participants who met criteria for treatment-resistant schizophrenia. Principal components analysis using data from 287 participants reduced the initial item pool of 31 items to 15 items with a three component structure. The components represented social control and reassurance seeking, threat monitoring and avoidance and conscious self-regulation attempts. Confirmatory factor analysis using data from the remaining 200 participants generally supported this three factor structure. The three subscales were found to have good internal consistency and convergent validity. The MCR, therefore, appears to be a useful tool to identify and monitor response styles, and could be utilised in further research to increase our understanding of the complex relationships between responses, symptoms and distress. It can also be used in clinical practice to elicit information that will be helpful in the psychological formulation and treatment of psychosis.",
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note = "Funding body agreements and policies The FOCUS Trial was funded by the National Institute for Health Research Health Technology Assessment (NIHR HTA) programme (project number 10/101/02) and will be published in full in Health Technology Assessment. Visit the HTA programme website for further project information. The views and opinions expressed therein are those of the authors and do not necessarily reflect those of the HTA programme, NIHR, NHS or the Department of Health. Acknowledgements The authors would like to acknowledge The Psychosis Research Unit (PRU) Service User Reference Group (SURG) for their support with the FOCUS Trial and for their contribution to designing the Measure of Common Responses. We also acknowledge The Mental Health Research Network, Scottish Mental Health Research Network, FOCUS Trial Steering Committee and Data Monitoring and Ethics Committee. Thanks also to Lizi Graves, Susan Irving, Toyah Lebert, Liesbeth Tip, Maggie Douglas-Bailey and the other Research Assistants who have worked on the FOCUS Trial.",
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