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Fig. 2 | Sleep Science and Practice

Fig. 2

From: Evaluation of psychometric properties of sleep quality questionnaire among medical students of Guilan University of Medical Sciences

Fig. 2

The conceptual model of the sleep quality questionnaire along with standardized coefficients. In this model, each question has an impact on its corresponding dimensions. The questions 1, 2, 4, and 9 are associated with the dimension of sleep difficulty, while questions 3, 5, 6, 7, 8, and 10 are associated with the dimension of daytime sleepiness. The standardized coefficients indicate the strength and direction of the relationship between each question and its respective dimension

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Sleep Science and Practice

ISSN: 2398-2683

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