Psychometric investigation of the French version of the Aberrant Salience Inventory (ASI): diferentiating patients with psychosis, patients with other psychiatric diagnoses and non-clinical participants
[en] During the prodromal phase of psychosis, individuals may experience an aberrant attribution of salience to irrelevant stimuli. The concept of aberrant salience has been hypothesized to be a central mechanism in the emergence and maintenance of psychosis. The 29-item Aberrant Salience Inventory (ASI) was designed to measure fve aspects of aberrant salience. The aim of this study was to investigate the psychometric properties of the French version of the ASI comparing patients with psychosis, patients with other diagnosis and healthy, non-clinical participants. The French-language ASI was adapted using the back-translation procedure. Two hundred and eighty-two participants issued from the general population and 150 psychiatric patients were evaluated. Internal validity was assessed using a two-parameter logistic item response model. Reliability was estimated using a test–retest procedure. Convergent validity was estimated using correlations between the ASI scores and several other scales. Sensitivity was evaluated by comparing the scores of participants with a diagnosis of psychosis, patients with other diagnoses and the general population. The best model distinguished three factors: Enhanced Interpretation and Emotionality, Sharpening of Senses and Heightened Cognition. Reliability and convergent validity estimates were good in both groups. The Sharp ening of Senses factor was able to discriminate between patients and the general population. Only the Heightened Cognition factor was able to discriminate patients with psychosis from the other psychiatric patients. The ASI is a valid and reliable tool to study not only the aberrant salience phenomenon in patients with psychosis, but also with other diagnoses and within the general population
Disciplines :
Theoretical & cognitive psychology
Author, co-author :
Golay, Philippe; Lausanne University Hospital > Psychiatry > Community Psychiatry
Laloyaux, Julien ; Université de Liège - ULiège > Département de Psychologie > Département de Psychologie
Moga, Michaela; Lausanne University > Department of psychiatry > Community Psychiatry Service
Della Libera, Clara ; Université de Liège - ULiège > Département de Psychologie > Département de Psychologie
Laroi, Frank ; Université de Liège - ULiège > Département de Psychologie > Département de Psychologie
Bonsack, Charles; Lausanne University > Department of Psychiatry > Community Psychiatry Service
Language :
English
Title :
Psychometric investigation of the French version of the Aberrant Salience Inventory (ASI): diferentiating patients with psychosis, patients with other psychiatric diagnoses and non-clinical participants
Alternative titles :
[fr] Investigation psychométrique de la version française de l'Inventaire de Saillance Aberrante : Différenciation des patients avec une psychose des patients avec d'autres diagnostics psychiatriques et des patients non-cliniques
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