Validation of the Schizophrenia Quality of Life Scale Revision 4 (SQLS-R4) Among Patients with Schizophrenia

  • Viktor Isjanovski Psychiatric Hospital “Skopje”, Skopje
  • Andromahi Naumovska Psychiatric Hospital “Skopje”, Skopje
  • Dimitar Bonevski Psychiatric Hospital “Skopje”, Skopje
  • Antoni Novotni Psychiatric Clinic, Faculty of Medicine, Ss Cyril and Methodius University of Skopje, Skopje
Keywords: schizophrenia, patients, reliabity, validity, the Quality of Life Scale


BACKGROUND: The main goal of psychiatric care is not to be focused only on reducing psychopathological symptoms, but on improvement of the patient's quality of life.

AIM: To examine validation and reliability SQLS-R4 among patients with schizophrenia.

METHODS: The sample consisted of 61 outpatients with schizophrenia attending the Psychiatry Hospital “Skopjeâ€. Inclusion criteria for subject selection were: 1) age more than 18 years, 2) clinically stable (not acutely ill or has not been recently hospitalized at least for the past 3 months). They completed SQLS-R4 and SF36 questioners.

RESULTS: The internal consistency reliability was satisfactory for both the psychosocial and vitality domains (Cronbach’s α = 0.928, 0.83). Most of the items were significantly correlated with own scale score (from 0.189 to 0.687). The average of the score for the psychosocial quality life was 39.9 ± 8.6 (sometimes), for the cognition and vitality was 26.5 ± 6.1 (sometimes) (SQLS-R4). There was moderate correlation between SF 36-energy with SQOLS - motivation and energy; SF 36-mental health correlation with SQOLS-psychosocial.

CONCLUSION: SQLS-R4 appears to offer excellent potential as an easily administered and patient acceptable assessment and monitoring measure of quality of life (QoL). However, a principle psychometric criterion crucial to the use and validity of the instrument concerns the underlying factor structure.


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How to Cite
Isjanovski V, Naumovska A, Bonevski D, Novotni A. Validation of the Schizophrenia Quality of Life Scale Revision 4 (SQLS-R4) Among Patients with Schizophrenia. Open Access Maced J Med Sci [Internet]. 2016Jan.11 [cited 2020Dec.5];4(1):65-9. Available from:
B - Clinical Sciences