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Journal of Speech and Hearing Research Vol.36 996-1003 October 1993.
© American Speech-Language-Hearing Association
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Auditory Lexical Decisions in Children and Adults

An Examination of Response Factors

Jan Edwards 1
Margaret Lahey 2
1 Hunter College, CUNY New York
2 Emerson College Boston, MA

This study examined the influence of nonlexical response factors on the speed of auditory lexical decisions in children and adults. Two groups of children (6- and 7-year-olds, 8- and 9-year-olds) and adults participated in three tasks: a real-word lexical decision task in which subjects were asked to say "yes" as quickly as possible to real words; a nonword lexical decision task in which subjects were asked to say "no" as quickly as possible to nonwords; and an auditory-vocal reaction time task in which subjects were asked to say "yes" or "no" to a tone. Response times on all tasks decreased with age. However, the age-related differences on the real-word lexical decision task disappeared when differences in auditory-vocal reaction times were taken into account. This result suggests that a large part of developmental differences in the speed of lexical processing may be due to nonlexical response factors.

KEY WORDS: language development, language processing, language disorders, lexical decision

Submitted on October 13, 1992
Accepted on April 16, 1993






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