PMID- 35317498
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20220324
IS  - 1300-0667 (Print)
IS  - 1309-4866 (Electronic)
IS  - 1300-0667 (Linking)
VI  - 59
IP  - 1
DP  - 2022
TI  - Brief Clinical Assessment Scale for Schizophrenia (BCASS): Development, Validity, 
      and Reliability Study.
PG  - 14-20
LID - 10.29399/npa.27592 [doi]
AB  - INTRODUCTION: The instruments used for the clinical assessment of schizophrenia 
      and other psychotic disorders are not commonly administered in routine clinical 
      practice since their application takes a long time. This study aims to develop a 
      short, comprehensive, and easy-to-apply scale and to examine its psychometric 
      properties. METHODS: A 14-item scale was prepared by adding two items inquiring 
      about obsessions and memory difficulties to the items taken from Positive and 
      Negative Syndrome Scale (PANSS) covering the diagnostic criteria for 
      schizophrenia and schizoaffective disorder. The items were rated on a 4-point 
      scale reflecting their effect on daily functioning as 1. not present, 2. mild 
      problems, 3. moderate problems, 4. severe problems. The scale was administered 
      together with other concordant scales to the patients with schizophrenia and 
      schizoaffective disorder. The construct validity of the scale was analyzed by 
      explanatory factor analysis, the concurrent validity was examined through 
      correlations of the scale scores with those of comparable scales, and criterion 
      validity was evaluated by the sensitivity to the change in psychopathology. For 
      reliability, internal consistency coefficient and interrater reliability were 
      assessed. RESULTS: Data from a total of 120 patients were analyzed. The internal 
      consistency coefficient of the scale was calculated as 0.89. Exploratory factor 
      analysis yielded a 4-factor solution which accounted for 74.47% of the total 
      variance of the scale scores. The first factor (psychosis) explained 43.49% of 
      the total variance, the second factor (negative/cognitive impairment) explained 
      14.53%, the third factor (emotional distress) explained 11.19%, and the fourth 
      factor (disorganization) explained 5.34% of the total variance. Significant 
      correlations were found between the scale's total score and the PANSS (r=0.78), 
      Clinical General Impression-Severity (CGI-S) (r=0.81), and Global Assessment of 
      Functioning (GAF) scores (r=-0.77). Interrater reliability was strong (ICC=0.89), 
      and the sensitivity to the change in psychopathology was significant (Cohen 
      d=2.68). CONCLUSION: The scale demonstrated adequate psychometric properties in 
      terms of reliability, validity, and dimensionality that justify its use in 
      routine clinical practice.
CI  - Copyright: (c) 2022 Turkish Neuropsychiatric Society.
FAU - Yildiz, Mustafa
AU  - Yildiz M
AD  - Kocaeli University Faculty of Medicine, Department of Mental Health and Diseases, 
      Kocaeli, Turkey.
FAU - Incedere, Aysel
AU  - Incedere A
AD  - Kocaeli University Institute of Health Sciences, Department of Mental 
      Rehabilitation, Kocaeli, Turkey.
FAU - Gurcan, Mehmet Bugrahan
AU  - Gurcan MB
AD  - Kocaeli University Faculty of Medicine, Department of Mental Health and Diseases, 
      Kocaeli, Turkey.
FAU - Osman, Emre
AU  - Osman E
AD  - Kocaeli University Faculty of Medicine, Department of Mental Health and Diseases, 
      Kocaeli, Turkey.
LA  - eng
PT  - Journal Article
DEP - 20210804
PL  - Turkey
TA  - Noro Psikiyatr Ars
JT  - Noro psikiyatri arsivi
JID - 9426194
PMC - PMC8895813
OTO - NOTNLM
OT  - Rating scale
OT  - psychopathology
OT  - reliability
OT  - schizophrenia
OT  - validity
COIS- Conflict of Interest: The authors declared that there is no conflict of interest.
EDAT- 2022/03/24 06:00
MHDA- 2022/03/24 06:01
PMCR- 2021/08/04
CRDT- 2022/03/23 05:15
PHST- 2020/12/16 00:00 [received]
PHST- 2021/05/31 00:00 [accepted]
PHST- 2022/03/23 05:15 [entrez]
PHST- 2022/03/24 06:00 [pubmed]
PHST- 2022/03/24 06:01 [medline]
PHST- 2021/08/04 00:00 [pmc-release]
AID - archneuro-59-14 [pii]
AID - 10.29399/npa.27592 [doi]
PST - epublish
SO  - Noro Psikiyatr Ars. 2021 Aug 4;59(1):14-20. doi: 10.29399/npa.27592. eCollection 
      2022.