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Validation study of the Questionnaire of Psychotic Experiences
Schinková, Kristýna ; Höschlová, Eva (advisor) ; Rodriguez Manchola, Mabel Virginia (referee)
Psychotic experiences occur across various diagnostic groups and also among healthy population, but current methods are usually suitable only for specific diagnoses. This thesis presents a new method - the Questionnaire for psychotic experiences (QPE), which is independent on the type of diagnosis. In the theoretical part different types of hallucinations and delusions will be presented, including little studied sensed presence. The appearance of those phenomena among various illnesses will be described, as well as among non-clinical population. We will present currently used methods that map psychotic experiences and we will compare them with QPE. At the end of this part the Questionnaire for psychotic experiences will be introduced together with current findings about the psychometric properties of its English version. The research part will focus on assessing reliability and validity of the Czech version of QPE. 146 participants with schizophrenia spectrum disorder and 147 healthy individuals took part in the study. The reliability of the questionnaire was examined using test-retest, interrater and internal consistency. Construct and criterion validity were assessed as well. We also tested the factor structure of the questionnaire and its sensitivity and specificity. The results show the...

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