Table 3.

Mean, Standard Deviation and Range Values for Velocity Presentations During The Four Head-Shake Conditions by Age

	Condition
Age Group (years)	HS 2- 60	HS 2- 120	HS 5- 15	HS 5- 60
20-39
M	63.6	117.2	22.1	64.7
SD	5.89	4.05	3.6	5.18
Range	56-73	112-123	17-27	58-77
40-59
M	63	122.7	20.5	60.6
SD	5.4	13.78	4.77	4.7
Range	54-69	101-156	14-26	54-67
60-69
M	61.6	116.8	21.6	61.7
SD	4.06	6.78	4.55	5.95
Range	55-66	111-125	16-31	50-67
70-79
M	65.3	124.6	19.9	63.3
SD	2.63	3.92	3.67	9.68
Range	62-69	116-130	16-25	47-82
Overall 20-79
M	63.38	120.32	21.03	62.57
SD	4.68	8.57	4.11	6.6
Range	54-73	101-156	14-31	47-82

Note: Velocity averages in deg/s for the three trials in each head-shake condition.