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. 2007 Jan 30;274(1613):1057–1062. doi: 10.1098/rspb.2006.0263

Table 1.

Linear mixed models of maximum display speed on maximum background speed that incorporate within-individual variability. (Model estimates are calculated using restricted maximum likelihood.)

effect b d.f. t p, one-tailed
Anolis cristatellus (n=16)
intercept 17.05 18.9 6.56 <0.0001
across individuals 0.74 21.9 3.04 0.003
within individuals 0.32 58.8 2.22 0.015
A. gundlachi (n=18)
intercept 14.65 16.7 3.22 0.003
across individuals 0.84 15.0 2.10 0.026
within individuals 0.73 2.29 4.48 0.018