Reliability and validity of the Turkish version of cognitive assessment interview (CAI-TR)

Abstract

Objective: The Cognitive Assessment Interview (CAI) is an interview-based scale developed to assess cognitive functioning of patients diagnosed with schizophrenia. It is scored by a clinician according to patient and informant interview. This study aimed to determine the reliability and validity of the CAI-Turkish Version (CAI-TR).Methods: The Cognitive Assessment Interview (CAI) was translated to Turkish and back to English and the back-translated form of the scale was approved by Dr. Ventura, its original developer. The translated text was administered to five schizophrenia outpatients as a pilot study and was deemed appropriate following a joint review by the research team. Ninety clinically stable outpatients with schizophrenia or schizoaffective disorder diagnosis were evaluated by clinicians using SCID-I (CV), PANNS, and Social Functioning Scale. To assess the patients' neurocognitive status, certified expert psychologists administered a neurocognitive test battery including Öktem Verbal Memory Process Test, Wechsler Memory Scale-Digit Span, Verbal Fluency Test, Continuous Performance Test, Trail Making Test-A, Tower of London Test, The ''Reading the Mind in the Eyes'' test (Eyes Test), and Facial Emotion Identification and Discrimination Test. Results: Internal consistency of CAI-TR was good, with Cronbach's alpha value of 0.97. For patient scores, Cronbach's alpha value was 0.91. Each item of CAI-TR was correlated with the related neurocognitive test (r=0.242-0.564; p