0000000000172159
AUTHOR
Marta Walentynowicz
Supplemental Material, JEP059716_supplement - Sensory and affective components of symptom perception: A psychometric approach
Supplemental Material, JEP059716_supplement for Sensory and affective components of symptom perception: A psychometric approach by Marta Walentynowicz, Michael Witthöft, Filip Raes, Ilse Van Diest, and Omer Van den Bergh in Journal of Experimental Psychopathology
Sensory and affective components of symptom perception: A psychometric approach
Psychological accounts of symptom perception put forward that symptom experiences consist of sensory-perceptual and affective-motivational components. This division is also suggested by psychometric studies investigating the latent structure of symptom reporting. To corroborate the view that the general and symptom-specific factors of a bifactor model represent affective and sensory components, respectively, we performed bifactor models applying confirmatory factor analytic approaches to the Patient Health Questionnaire-15 and the Checklist for Symptoms in Daily Life completed by 1053 undergraduate students. Additionally, we explored the association of latent factors with negative affectivi…
The latent structure of the functional dyspepsia symptom complex: A taxometric analysis
OBJECTIVES: Rome III introduced a subdivision of functional dyspepsia (FD) into postprandial distress syndrome and epigastric pain syndrome, characterized by early satiation/postprandial fullness, and epigastric pain/burning, respectively. However, evidence on their degree of overlap is mixed. We aimed to investigate the latent structure of FD to test whether distinguishable symptom-based subgroups exist. METHODS: Consecutive tertiary care Rome II FD patients completed the dyspepsia symptom severity scale. Confirmatory factor analysis (CFA) was used to compare the fit of a single factor model, a correlated three-factor model based on Rome III subgroups and a bifactor model consisting of a g…