Original scientific paper

https://doi.org/10.24869/psyd.2021.347

PSYCHOMETRIC CHARACTERISTICS OF THE MACEDONIAN VERSION OF CLINICAL ASSESSMENT INTERVIEW FOR NEGATIVE SYMPTOMS (CAINS)

Biljana Blaževska Stoilkovska ; Department of Psychology, Faculty of Philosophy, Ss. Cyril in Methodius University in Skopje, Skopje, R. North Macedonia
Stojan Bajraktarov ; University Clinic of Psychiatry, Ss. Cyril in Methodius University in Skopje, Skopje, R. North Macedonia
Silvana Markovska Simoska ; Academy of Sciences and Arts of North Macedonia, Skopje, R. North Macedonia
Miloš Milutinović ; University Clinic of Psychiatry, Ss. Cyril in Methodius University in Skopje, Skopje, R. North Macedonia
Ljubiša Novotni ; University Clinic of Psychiatry, Ss. Cyril in Methodius University in Skopje, Skopje, R. North Macedonia
Slavica Arsova ; University Clinic of Psychiatry, Ss. Cyril in Methodius University in Skopje, Skopje, R. North Macedonia
Gabriela Novotni ; University Clinic of Neurology, Ss. Cyril in Methodius University in Skopje, Skopje, R. North Macedonia
Valentina Čalovska Samardziska ; University Clinic of Psychiatry, Ss. Cyril in Methodius University in Skopje, Skopje, R. North Macedonia
Sonja Delova ; Psychiatric Hospital "Skopje", Skopje, R. North Macedonia
Antoni Novotni ; University Clinic of Psychiatry, Ss. Cyril in Methodius University in Skopje, Skopje, R. North Macedonia
Nikolina Jovanović ; Unit for Social and Community Psychiatry, WHO Collaborating Centre for Mental Health Services Development, Bart’s and London School of Medicine and Dentistry, Queen Mary University of London, London, UK

Abstract

Background: Despite the importance of effective assessment and treatment of negative symptoms among patients with psychosis,
no validated instruments are available in the Republic of North Macedonia. The aim of this paper was to explore psychometric
properties, namely factorial structure, internal consistency, convergent and discriminant validity of the Clinical Assessment
Interview for Negative Symptoms (CAINS).
Subjects and methods: In this cross-sectional study 82 outpatients diagnosed with psychosis (64 with schizophrenia and 18 with
bipolar disorder; female=34, mean age=41.05±10.09) were assessed.
Results: The exploratory factor analysis revealed two factorial structure of the negative symptoms as measured by the CAINS,
i.e. ‘expression and motivation’ and ‘pleasure’. Two items aimed to measure motivation for family relations and motivation for
work/school activities loaded on the expression factor instead on motivation and pleasure factor which differs from the original
version of the CAINS. Convergent validity was proven by positive relationship to negative symptoms as measured by the BPRS.
Positive, but weak correlation with BPRS positive symptoms demonstrated its discriminant validity. Internal consistency of overall
CAINS scale and its two subscales was very high.
Conclusion: The CAINS can be used to assess negative symptoms in individuals with psychosis in the Macedonian clinical
context. Consequently, this work can provide a foundation for further clinical advancement and research of negative symptoms in
Macedonian healthcare.

Keywords

CAINS; negative symptoms; psychometric properties; psychosis; Macedonian clinical context

Hrčak ID:

266020

URI

https://hrcak.srce.hr/266020

Publication date:

22.11.2021.

Visits: 558 *