TABLE 6-2.

Summary of hierarchical multiple regressions that tested the predictive power of visual crowding effects for reading fluency.

Step	Predictors	Reading fluency (ΔR2)
Controlling for variation in age, non-verbal IQ, RAN, PA, and Writing
1	Age	0.120**
2	Non-verbal IQ	0.231***
3	RAN-D	0.150***
4	RAN-O	0.000
5	RAN-C	0.006
6	PA	0.007
7	Writing	0.030*
8	VCSC	0.045**
Controlling for variation in age, non-verbal IQ, VCSC, RAN, and PA
1	Age	0.120**
2	Non-verbal IQ	0.231***
3	VCSC	0.044*
4	RAN-D	0.146***
5	RAN-O	0.000
6	RAN-C	0.010
7	PA	0.003
8	Writing	0.034*
Controlling for variation in age, non-verbal IQ, VCSC, Writing, and PA
1	Age	0.120**
2	Non-verbal IQ	0.231***
3	VCSC	0.044*
4	Writing	0.091***
5	PA	0.011
6	RAN-D	0.075***
6	RAN-O	0.010
6	RAN-C	0.038*

The number on the left indicates the predicators’ order of entering the equation. Asterisk(s) indicates significance levels: *p < 0.05, **p < 0.01 and ***p < 0.001.