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. Author manuscript; available in PMC: 2007 Oct 15.
Published in final edited form as: J Comp Psychol. 1998 Mar;112(1):95–99. doi: 10.1037/0735-7036.112.1.95

Table 1.

Distribution of Hand Use in Gestural Communication

Hand use
Variable Left Right z score χ2(1, N = 63)
Sex 3.21
 Male 14 15  0.19
 Female  9 25  2.75*
Gesture type 5.04
 Food beg  3 16  2.98*
 Pointing 20 24  0.60
Food position 0.55
 Left 12 17  0.09
 Right 11 23  1.91
Vocalization 4.11
 Yes  5 19  2.86*
 No 18 21  0.48
Age 4.80
 3–15 years 14 13 −0.19
 > 15 years  9 27  3.00*
Rearing 0.25
 Mother 10 20  1.82
 Nursery 13 20  1.22
*

p < .01.