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Table 6 Scale-scale correlations of the simplified Chinese NRSS (n = 570)

From: The simplified Chinese version of the Nonrestorative Sleep Scale in Chinese young adults and measurement invariance across language and age

Subscales of NRSS

Global score

Refreshment from sleep

Physical/Medical symptoms of NRS

Daytime function

Refreshment from sleep

0.76**

-

-

-

Physical/Medical symptoms of NRS

0.79**

0.38**

-

-

Daytime function

0.73**

0.60**

0.36**

-

Affective symptoms

0.55**

0.29**

0.35**

0.25**

  1. NRSS: Nonrestorative Sleep Scale; NRS: nonrestorative sleep
  2. **: P < 0.01
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BMC Psychology

ISSN: 2050-7283

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