Table 1.

Sample Demographics and Descriptive Statistics of Study Variables

	M or n	SD or %	Min	Max	Skewness	Kurtosis
Sample 1
Age	56.24	12.20	33	84	0.19	−0.82
Female (vs. male)	1157	57.2%
Caucasian (vs. non-Caucasian)	1696	83.9%
Negative Affect	0.19	0.33	0	3.5	3.17	14.10
Sleep Duration (hours)	7.13	1.48	0	18	−0.71	3.45
Sample 2
Age	47.9	12.7	25	75	0.24	−0.88
Female (vs. male)	435	55.6%
Caucasian (vs. non-Caucasian)	659	84.3%
Negative Affect	0.22	0.35	0	3.5	3.19	15.00
Sleep Duration (hours)	7.17	1.51	0	18	−0.72	4.23

Note. N = 2,022 in Sample 1, 782 in Sample 2.