Vol. 38 (1) 2017 Neuro endocrinology letters

Structural and construct validity of the Czech version of the Pittsburgh Sleep Quality Index in chronic insomnia.

OBJECTIVES: The Pittsburgh Sleep Quality Index (PSQI) is one of the widely used and recommended measures of assessing sleep quality in chronic insomnia; however certain psychometric properties of the questionnaire are still unknown in this group of patients. The present study aimed to examine the internal consistency, and structural and.....