Is the provision of contextual properties influenced by the semantic domain of the lexical
items?
All the children provided more ''contextual'' properties for the words describing animals than
for the words describing artifacts across testing. The differences were significant for post test
3 (WilcoxomZ=I.9, p<.05). Separate analysis for each one of the groups demonstrated the
same pattern. Significant differences were found for the Definition group during post test 2
(Wilcoxon: Z=2.3, p<.05) and post test 3 (Wilcoxon: Z=2.5, p<.05).
Analysis of the “functional properties”
Is there a differential impact of the type of exposure to new lexical items that the children
receive on the provision of functional properties ?
No significant differences were found for post test 1, while, the differences were found to be
significant for post test 2 (Kruskall-Wallis 1 -Way Anova: X2 = 19.9, df=2, p<.0000) and post
test 3 (Kruskall-Wallis I-Way Anova: X2 = 28.03, df=4, p<.0000). Particularly, during post
test 2 the Definition group provided significantly more “functional” properties than the
Ostensive definition group (WilcoxomZ= 2.1, p<.05). During post test 3, the Definition
group provided significantly more “functional” properties than the Control (Wilcoxon: Z =
3.5, p<.0005) the Phonological control group (Wilcoxon: Z =3.8, p<.0005), and the Ostensive
definition group (Wilcoxon: Z= 3.9, p<.0005). In addition, the Lexical contrast group
provided significantly more “functional” properties than the Control (Wilcoxon: Z= 1.9,
p<.05) the Phonological control group (Wilcoxon: Z=1.9, p<.05) and the Ostensive
definition group (Wilcoxon: Z=2.02, p<.05). Lastly, the Definition group provided
significantly more “functional” properties than the Lexical contrast group (Wilcoxon: Z=2.2,
p<,05).
Does children ,s provision of functional properties increase with increased exposure to the
lexical items?
The children during post test 3 provided significantly more functional properties than in post
test 1 (Wilcoxon: Z=2.9, p<.005) and post test 2 (Wilcoxon: Z=2.1, p>.05).
271
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