Table 9.

Mean ranks for sensor items with significant differences, on-campus versus residence versus off-campus locations.

Significant sensor itema	On-campus			Residence			Off-campus
	Mean rank	Sample, n	Mean rank		Sample, n	Mean rank		Sample, n
Battery level	177.45	240	96.28		16	202.02		105
User time	211.38	166	323.51		35	213.66		241
Idle time	215.84	166	367.09		35	204.26		241
Total time	213.06	166	363.54		35	206.68		241
Uptime	202.88	280	364.36		47	379.41		260
Uptime with sleep	199.59	280	353.03		47	385.00		260

^aP<.01.