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. Author manuscript; available in PMC: 2018 Jan 9.
Published in final edited form as: Psychoneuroendocrinology. 2012 Jun 1;37(12):1981–1989. doi: 10.1016/j.psyneuen.2012.04.014

Figure 1.

Figure 1

The stability of aggregate and single sample cortisol measures over 1 week based on intra-class correlations (ICC). AUCAG, area under the curve relative to ground for the awakening response; AUCI, area under the curve relative to increase; AUCTG, area under the curve relative to ground for the diurnal profile; Morning, randomly selected sample from three morning samples; Random, randomly selected sample from all samples collected. Note: Line at .8 signifies optimal stability, and changes in line style used to ease interpretation of the figure.