Table 7.

Dimensionality Analysis of the AS-20 Self-Perception, Interaction, Reading Function, and General Function Subscales

	Self-Perception Subscale		Interaction Subscale		Reading Function Subscale		General Function Subscale
	Eigen	%	Eigen	%	Eigen	%	Eigen	%
Total raw variance	22.0	100.0	13.2	100.0	15.2	100.0	9.2	100.0
Explained by measures	17.0	77.2	8.2	62.0	11.2	73.7	5.2	56.6
Explained by persons	15.1	68.8	5.2	39.3	10.5	69.2	3.6	38.6
Explained by items	1.9	8.5	3.0	22.7	0.7	4.6	1.7	18.0
Total unexplained	5.0	22.8	5.0	38.0	4.0	26.3	4.0	43.4
1st contrast	1.8	8.1	1.7	12.8	1.6	10.4	1.6	17.7
2nd contrast	1.4	6.2	1.3	9.9	1.3	8.5	1.4	15.0
3rd contrast	1.0	4.3	1.0	7.8	1.1	7.3	1.0	10.7
4th contrast	0.9	4.1	1.0	7.3	0.0	0.1	0.0	0.0
5th contrast	0.0	0.0	0.0	0.1	0.0	0.0	0.0	0.0
	Item Number	1st Contrast Loading	Item Number	1st Contrast Loading	Item Number	1st Contrast Loading	Item Number	1st Contrast Loading
	1	−0.66	5	0.34	12	0.37	11	0.86
	2	0.26	7	0.52	13	0.79	15	0.19
	3	0.59	8	−0.66	16	−0.67	17	−0.66
	4	0.69	9	0.68	20	−0.61	18	−0.64
	6	−0.68	10	−0.64