Table 2. Spearman correlations of main variables by study day (n = 20–23).

Variable	Cortisol 0 min (S1)	CAR AUCI	Awakening time	Sleep quality	ASQ	Daily life stress (aggregate)	Daily life distress (aggregate)
Cortisol 0 min (S1)	.48*	−.70***	−.05	.01	.13	.35	.18
CAR AUCI	−.55**	.41	.32	.07	.24	−.27	−.06
Awakening time	−.26	.09	.47*	−.27	.38	−.10	.09
Sleep quality	−.25	.61**	−.04	.79***	−.19	.16	.20
ASQ	.05	.14	−.11	.12	.35	.28	.12
Daily life stress (aggregate)	.30	−.02	−.04	.07	.30	.56**	.69***
Daily life distress (aggregate)	.10	−.08	−.03	−.17	−.02	.49*	.52*

Note. CAR AUCI = cortisol awakening response area under the curve increase; ASQ = Anticipatory Stress Questionnaire.

⁺ p ≤.10;

^* p ≤.05;

^** p ≤.01;

^*** p ≤.001.

Day 1 above diagonal, day 2 below diagonal. Diagonal shows stability of variables across days.