Table 3. Final model for chimpanzees.

Type III Tests of Fixed Effects
Source	Numerator	Denom. df	F	Sig.
Intercept	1	14.400	0.132	0.722
Lin	1	8.191	41.889	0.000
Pupil-size Stimulus	1	116.778	1.668	0.199
Own/Other Species	1	116.898	0.948	0.332
Quad	1	21.019	32.423	0.000
Quad * Pupil-size Stimulus	1	108.521	4.790	0.031
Quad * Own/Other Species	1	100.250	0.438	0.510
Quad * Pupil-size Stimulus * Own/Other Species	1	101.117	4.631	0.034
Cub	1	6.096	11.280	0.015