Show simple item record

dc.contributor.authorSterling, Audra
dc.contributor.authorRice, Mabel L.
dc.contributor.authorWarren, Steven F.
dc.identifier.citationSterling, Audra M., Mabel L. Rice, and Steven F. Warren. “Finiteness Marking in Boys with Fragile X Syndrome.” Journal of speech, language, and hearing research : JSLHR 55.6 (2012): 1704–1715.en_US

This study investigated finite marking (e.g., he walks, he walked) in boys with fragile X syndrome; the boys were grouped based on receptive vocabulary (i.e., borderline, or impaired vocabulary).


Twenty-one boys with the full mutation of fragile X, between the ages of 8 to 16 years participated. The boys completed probes from the Test of Early Grammatical Impairment (Rice & Wexler, 2001), a language sample, a nonverbal IQ test (Leiter-R, Roid & Miller, 1997), a receptive vocabulary test (PPVT-IV Dunn & Dunn, 2007), and a measure of autistic symptoms (CARS; Schopler et al., 2002).


There were group differences for finiteness responses on the third person singular probe; the group with impaired vocabulary omitted markers with greater frequency compared to borderline vocabulary group. There were not significant differences on the past tense probe, although boys with borderline and impaired vocabulary were delayed relative to language expectations. Nonverbal IQ was not correlated with the measures of finiteness marking.


Boys with FXS demonstrate delays in finiteness marking, in particular on past tense verbs. Boys with impaired vocabulary show a unique profile unlike children with SLI, in which their use of tense markers may exceed expectations benchmarked to clause length.
dc.publisherAmerican Speech-Language-Hearing Associationen_US
dc.subjectFragile X syndromeen_US
dc.subjectLanguage phenotypeen_US
dc.subjectFiniteness markingen_US
dc.subjectReceptive vocabularyen_US
dc.titleFiniteness Marking in Boys with Fragile X Syndromeen_US
kusw.kuauthorRice, Mabel L.
kusw.oaversionScholarly/refereed, author accepted manuscripten_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US

Files in this item


This item appears in the following Collection(s)

Show simple item record