Table 4.

Summary of standard deviations in cm.

Condition	Range	Mean	SD
RO same	1.18–3.42	2.27	0.59
RO diff	1.22–2.63	1.69	0.35
IO same	1.43–3.54	2.12	0.49
IO diff	1.46–3.11	2.10	0.41
RO+IO same	1.85–3.54	2.59	0.47
RO+IO diff	1.26–2.74	1.71	0.34

Range, mean and standard deviation of the sample are listed.