In order to assess habitual sleep patterns
and depressive symptoms, participants completed the Pittsburgh
Sleep Quality Index (PSQI; Buysse et al., 1989) and the
Beck Depression Inventory-II(BDI-II; Beck et al., 1996),respectively.
The PSQI and BDI-II are widely used and well-validated
instruments (Carpenter and Andrykowski, 1998; Dozois et al.,
1998)
In order to assess habitual sleep patternsand depressive symptoms, participants completed the PittsburghSleep Quality Index (PSQI; Buysse et al., 1989) and theBeck Depression Inventory-II(BDI-II; Beck et al., 1996),respectively.The PSQI and BDI-II are widely used and well-validatedinstruments (Carpenter and Andrykowski, 1998; Dozois et al.,1998)
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