Table 5.

Model of individual differences in reading ability and longitudinal change in L-R IPS connectivity

Connectivity (gPPI)
	R IPS
Fixed effects
Intercept estimate (SE)	−2.69 (1.75)
Intercept t (p)	−1.54 (0.13)
Age slope estimate (SE)	0.11 (0.07)
Age slope t (p)	1.60 (0.12)
Word reading estimate (SE)	0.01 (0.01)
Word reading t (p)	0.87 (0.39)
Random effects
Intercept variance	0.23
Residual variance	0.86
AIC	210.2

Values for each term included in the final model and their significance are noted below. These include fixed-effect terms (regression coefficients and their standard errors) and random-effect terms (intercept variance and slope variance). Model-fitting procedures are described in the Methods section. Random effects are across individuals

gPPI generalized form of psychophysiological interaction, SE standard error, AIC Akaike information criterion, R right hemisphere, IPS intraparietal sulcus