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. Author manuscript; available in PMC: 2015 Oct 1.
Published in final edited form as: Image Vis Comput. 2014 Oct;32(10):641–647. doi: 10.1016/j.imavis.2013.12.007

Table 4.

Head motion during high and low severity interviews, Average root mean square

Head Motion High Severity Low Severity
Vertical Amplitude 0.0013 0.0029 *
Vertical Velocity 0.0001 0.0005 **
Horizontal Amplitude 0.0014 0.0034 **
Horizontal Velocity 0.0002 0.0005 **
*

p<0.05,

**

p<0.01 vs. high severity interviews by Wilcoxon Signed Rank test