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. 2022 Jan 11;90:53–64. doi: 10.1016/j.sleep.2022.01.002

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Fig. 1 — Effect size of the comparisons between sleep quality (PSQI) and chronobiological metrics (rMEQ and circadian misalignment, rows) and healthy behaviours (columns). Effect size is represented by eta squared (η²) and its value is directly proportional to both size and colour intensity of the circles. “X” stands for non-significant associations. rMEQ stands for “reduced Morningness/Eveningness Questionnaire”. PSQI stands for “Pittsburgh Sleep Quality Index”.