A Bidirectional Relationship between Conceptual Organization and Word Learning

Table 2

Hierarchical regression analysis of children’s vocabulary knowledge predicting their categorization behaviour.

Step	Δ𝑅^2	𝛽^a	𝑡 value	𝑃 value	𝑠𝑟^2b
Step  1	.03
PPVT-III		.01	.06	.956	<.01
Baseline taxonomic	category knowledge		−.17	1.67	.100
Step  2	.05
PPVT-III		.04	.43	.670	<.01
Baseline taxonomic	category knowledge		−.19	1.85	.067
Gains in target word	knowledge		.22	2.23	.028

aStandardized regression coefficient.
bSquared semipartial correlation.