This thesis is the pilot study of an ongoing investigation of the organization of the
mental lexicon in children with specific language impairment and children who stutter
(CWS). The current study analyzes the performance of 8 CWS, ages 4; 11 – 10; 1 and
their typically developing age matches (CWNS) on a list recall task adapted from
Roediger and McDermott (1995). Talker groups were matched for maternal education
level, male to female ratio, and standardized measures of nonverbal intelligence,
expressive vocabulary, digit memory, and narrative comprehension and production.
Similar to previous reports, the CWS performed significantly lower on a measure of
receptive vocabulary and a measure of phonological memory than the CWNS. For both
talker groups, there was a positive correlation between age and percentage of correctly
recalled words on the list recall task. Older CWNS produced more semantic intrusions
than younger CWNS; however the same trend was not demonstrated in CWS. False recall
of semantically-related, phonologically-related, and unrelated words was not significantly
different between talker groups. These findings provide preliminary evidence of
differences between talker groups on a list recall task. The inclusion of a greater number
of participants may provide stronger support for the hypothesis that lexical-semantic
organization is less efficient in CWS. / text
| Identifer | oai:union.ndltd.org:UTEXAS/oai:repositories.lib.utexas.edu:2152/ETD-UT-2010-05-1068 |
| Date | 25 October 2010 |
| Creators | Dearden, Elizabeth Anne |
| Source Sets | University of Texas |
| Language | English |
| Detected Language | English |
| Type | thesis |
| Format | application/pdf |
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