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. 2011 Jun;38(3):628-43.
doi: 10.1017/S0305000910000176. Epub 2010 Jul 8.

The influence of part-word phonotactic probability/neighborhood density on word learning by preschool children varying in expressive vocabulary

Holly L Storkel  1 , Jill R Hoover  1
Affiliations

The influence of part-word phonotactic probability/neighborhood density on word learning by preschool children varying in expressive vocabulary

Holly L Storkel et al. J Child Lang. 2011 Jun.

Abstract

The goal of this study was to examine the influence of part-word phonotactic probability/neighborhood density on word learning by preschool children with normal vocabularies that varied in size. Ninety-eight children (age 2 ; 11-6 ; 0) were taught consonant-vowel-consonant (CVC) nonwords orthogonally varying in the probability/density of the CV (i.e. body) and VC (i.e. rhyme). Learning was measured via picture naming. Children with the lowest expressive vocabulary scores showed no effect of either CV or VC probability/density, although floor effects could not be ruled out. In contrast, children with low or high expressive vocabulary scores demonstrated sensitivity to part-word probability/density with the nature of the effect varying by group. Children with the highest expressive vocabulary scores displayed yet a third pattern of part-word probability/density effects. Taken together, word learning by preschool children was influenced by part-word probability/density but the nature of this influence appeared to depend on the size of the lexicon.

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Figures

Figure 1
Figure 1
Mean proportion correct for the lowest vocabulary group for low versus high CV probability/density (x-axis) and low (circles) versus high VC probability/density (squares). Bars indicate standard errors.
Figure 2
Figure 2
Mean proportion correct for the low vocabulary group for low versus high CV probability/density (x-axis) and low (circles) versus high VC probability/density (squares). Bars indicate standard errors.
Figure 3
Figure 3
Mean proportion correct for the high vocabulary group for low versus high CV probability/density (x-axis) and low (circles) versus high VC probability/density (squares). Bars indicate standard errors.
Figure 4
Figure 4
Mean proportion correct for the highest vocabulary group for low versus high CV probability/density (x-axis) and low (circles) versus high VC probability/density (squares). Bars indicate standard errors.
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