Table 1.

Experiment 1: results of analysis of variance.

Source	Sum of squares	df	Mean square	F	Sig.
Gaze direction	7.950	4	1.987	234.936	0.000
Error (gaze direction)	0.305	36	0.008
Impulse direction	0.246	1	0.146	13.874	0.005
Error (impulse direction)	0.095	9	0.011
Gaze direction × impulse direction	0.020	4	0.005	2.879	0.036
Error (gaze direction × impulse direction)	0.064	36	0.002

The main effects of gaze direction and impulse direction are both significant. The interaction between gaze direction and impulse direction is borderline significant and occurs because the effect of impulse direction is slightly smaller at 40° than at other angles (see Figure 3C).