. Author manuscript; available in PMC: 2006 Oct 20.

Published in final edited form as: J Child Lang. 2006 Aug;33(3):439–459. doi: 10.1017/s0305000906007458

Table 3.

Results of the follow-up regression analyses by word types for Peter

	β estimate	Standard Error	r²	t	p
Sparse words
Frequency	−0.13	0.06	0.03	−2.33	0.02
Length	0.10	0.05	0.02	1.82	0.07
Dense words
Frequency	−0.15	0.08	0.04	−1.96	0.05
Length	0.20	0.08	0.05	2.44	0.02
Low frequency words
Density	0.11	0.07	0.01	1.64	0.10
Length	0.06	0.06	0.01	0.98	0.33
High frequency words
Density	0.09	0.07	0.01	1.20	0.23
Length	0.23	0.07	0.05	3.30	0.001
Short words
Density	0.14	0.06	0.01	2.14	0.03
Frequency	−0.21	0.05	0.04	−3.87	<0.001
Long words
Density	0.07	0.08	<0.01	0.87	0.39
Frequency	−0.01	0.08	<0.01	−0.09	0.93