SLI and NLI groups less sensitive (accuracy) to violations overall
F(2 172) 33.3 p lt .001 partial 2 .28
No interaction of group and sentence type
Tense omission was not more vulnerable than other violations
24 Assessing residual difficulties word monitoring
Same types of sentences
Respond to target word should be slower following grammatical violation
25 Assessing residual difficulties word monitoring
Interaction of group with grammaticality of sentence was significant only for Tense Omission
SLI and NLI groups were not slowed by tense omission but were slowed by other violations
26 New analysis
No significant group RT effects for either sentence processing task
Has overall processing speed deficit resolved
Combined data for both experiments
27 Preliminary results
Collapsing group means in a quick dirty manner
Effect of group is significant but small
F(2 172) 3.1 p lt .05 partial 2 .04
Children and adolescents with language impairment
show evidence of overall slow processing
but we dont know if it is truly generalized
processing speed may predict grammar growth
adolescents with LI are slower and less accurate to process sentences
Detection of tense omission may continue to be compromised even when production is accurate
Johnston J. Ellis-Weismer S. (1983). Mental rotation abilities in language-disordered children. Journal of Speech and Hearing Research 26 397-403.
Kail R. (1994). A method for studying the generalized slowing hypothesis in children with specific language impairment. Journal of Speech and Hearing Research 37 418-421.
Leonard L.B. Ellis Weismer S. Miller C.A. Francis D.J. Tomblin J.B. Kail R.V. (2007). Speed of processing working memory and language impairment in children. Journal of Speech Language and Hearing Research 50 408-428.
Leonard L.B. Miller C.A. Finneran D.A. (in press). Grammatical morpheme effects on sentence processing by school-aged adolescents with specific language impairment. Language and Cognitive Processes.
Miller C. A. Kail R. Leonard L. B. Tomblin J. B. (2001). Speed of processing in children with specific language impairment. Journal of Speech Language and Hearing Research 44 416-433.
Miller C.A. Leonard L.B. Kail R.V. Zhang X. Tomblin J.B. Francis D. (2006). Response time in 14-year-olds with language impairment. Journal of Speech Language and Hearing Research 49(4) 712-728.
Miller C.A. Leonard L.B. and Finneran D. (2008). Grammaticality judgments in adolescents with and without language impairment. International Journal of Language and Communication Disorders 43(3) 346-360.
Rice M.L. Tomblin J.B. Hoffman L. Richman W.A. Marquis J. (2004). Grammatical tense deficits in children with SLI and nonspecific language impairment Relationships with nonverbal IQ over time. Journal of Speech Language and Hearing Research 47(4) 816-834.
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