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Fig. 3. The effect of dummy size on response distance. Due to the strong asymmetry
of the apparent size distribution, means were taken on a logarithmic scale.
The vertical lines represent the 95% confidence interval. (A) The crab-dummy
distance at the moment of response is independent of the dummy's vertical
(black dots; REML; N=419, Wald/d.f.=2.01, d.f.=1, P=0.156)
and horizontal (open dots; REML; N=419, Wald/d.f.=1.03, d.f.=1,
P=0.309) size. (B) The apparent size of the dummy at the moment of
response is accurately predicted by both its vertical (black dots; REML;
N=419, Wald/d.f.=13.75, d.f.=1, P<0.001) and its
horizontal (open dots; REML; N=419, Wald/d.f.=7.18, d.f.=1,
P=0.007) size. The line connects the right-most point with the
origin.