Children’s skills in these two
domains are generally stable and closely related in the preschool
years (Storch & Whitehurst), though the correlation between the
two domains diminishes over time, as children progress into middle
childhood (Kendeou et al., 2009). For example, in those two studies,
standardized beta weights describing the relation between the two
domains in preschool ranged from .53 to .69. In kindergarten the
beta weights ranged from .17 to .31, and Kendeou et al. report the
2nd grade relation to be .11.