			a-b			b-c
		g₁	g₂	X²	g₁	g₂	X²
	R	0.63^**	0.99^**	15.81^**	−0.16	−0.47	9.35
M	L	0.47^**	1.31^**	16.74^**	−0.30^*	−0.16	13.48^*
	R + L	0.41^**	0.57	2.28	−0.29	−0.32	5.17
	R	0.45^**	0.90^**	19.01^**	−0.17	−0.11	8.18
F	L	1.19^*+	2.74^**	19.69^**	−0.33^*	0.24	13.23^*
	R + L	0.91^**	1.87^**	9.78	−0.27	−0.09	6.09
			c-d			a−d
	R	−0.28	0.99^**	12.18^*	−0.01	−0.57	6.71
M	L	−0.24	0.91^**	11.26^*	−0.19	−0.53	7.32
	R + L	−0.14	0.58	5.35	−0.13	−0.58	5.17
	R	−0.38^*	o.42	4.55	−0.25	−0.22	3.75
F	L	−0.48^**	0.34	8.68	−0.03	−0.14	6.46
	R + L	−0.39^**	0.18	10.15	−0.15	−0.15	2.40