Two-year-olds differentially disambiguate novel words and facts.
When presented with a pair of objects, one familiar and one unfamiliar, and asked to select the referent of a novel word, children reliably demonstrate the disambiguation effect and select the unfamiliar object. The current study investigated two competing word learning accounts of this effect: a pragmatic account and a word learning principles account. Two-, three- and four-year-olds were presented with four disambiguation conditions, a word/word, a word/fact, a fact/word and a fact/fact condition. A pragmatic account predicted disambiguation in all four conditions while a word learning principles account predicted disambiguation in the word/word and fact/word conditions. Results indicated that children disambiguated in word/word and fact/word conditions and two-year-olds disambiguated at above chance levels in the word/word condition but at BELOW chance levels in the fact/fact condition. Because disambiguation varied both as a function of age and condition these findings are presented as challenges to a pragmatic account of the disambiguation effect.
Scofield
Jason
J
222 Child Development Research Center, Human Development and Family Studies, University of Alabama, Tuscaloosa, AL 35401, USA. scofield@ches.ua.edu
Behrend
Douglas A
DA
D002663:Child Language; D002675:Child, Preschool; D003210:Concept Formation; D005260:Female; D006801:Humans; D008297:Male; D012660:Semantics; D014825:Vocabulary