Measuring Common Responses to Psychosis: Assessing the Psychometric Properties of a New Measure
Sarah Tully, Adrian Wells, Melissa Pyle, Jemma Hudson, Andrew Gumley, David Kingdon, Matthias Schwannauer, Douglas Turkington, Anthony P. Morrison Full Article 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...