. Author manuscript; available in PMC: 2015 Sep 1.

Published in final edited form as: Ment Health Phys Act. 2014 Sep 1;7(3):183–190. doi: 10.1016/j.mhpa.2014.05.003

Table 2.

Means and standard deviations of within and between level by method and group

Variable		All Participants (N = 68)		Bipolar Group (N = 32)		Healthy Group (N = 36)		Statistical difference values

		Mean	SD	Mean	SD	Mean	SD	t	p	d
Total Wake Time
Self-report^a	Overall	49.19	53.32	60.61	63.25	39.96	41.47	2.84	.006	.4
	Between		32.76		36.76		25.17
	Within		42.79		52.27		33.24
Actigraphy^a	Overall	117.36	75.06	127.60	86.77	109.05	62.83	1.59	.116	.3
	Between		44.28		56.53		28.02
	Within		59.92		64.18		56.25
Physical Activity
Self-report^b	Overall	2.67	3.32	2.58	3.34	2.74	3.31	.18	.862	.1
	Between		1.81		1.82		1.82
	Within		2.78		2.79		2.78
Actigraphy^c	Overall	2531.60	1058.20	2488.87	1034.39	2565.16	1077.38	.69	.494	.1
	Between		537.32		582.87		500.75
	Within		916.05		855.96		960.86

Unit of measurement = Minutes

Unit of measurement = METs (Metabolic Equivalent of Task)

Unit of measurement = Activity level measured in g-force