Effects of input manipulations on the word learning abilities of children with and without specific language impairment  

Oleh:

Horohov, Janice E. ; Oetting, Janna B.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Applied Psycholinguistics vol. 25 no. 1 (Mar. 2004), page 42-65.
Fulltext: 25;43-65.pdf (197.92KB)

Isi artikel

Three input variables were manipulated during a story-viewing task to examine the word learning abilities of children with and without specific language impairment (SLI). The variables were presentation rate, sentence complexity, and word type. Fifty-four children participated: 18 were identified as SLI and 36 served as normally developing age-matched or language-matched controls. The stimuli involved a videotaped reading of two stories that had novel words embedded in the narrative, and word learning was measured by examining the children’s ability to infer the meanings of the novel words from the story viewing context. A picture pointing task and a real word synonym task served as comprehension probes. A nonword repetition task and a battery of language tests were also administered. Two of the three input manipulations affected the children’s scores. Across both probes, word type resulted in a main effect, with children from all three groups earning higher scores for verbs than nouns. On the picture pointing probe, presentation rate interacted with group. The interaction reflected lower scores in the fast rate than the slow rate for the children with SLI but not for the controls. Children’s nonword repetition scores and standardized tests of vocabulary and syntax were moderately correlated with each other, and together these variables accounted for significant variation in the children’s story viewing scores even after age, IQ, and articulation ability were controlled. The vocabulary and syntax tests contributed unique variance whereas nonword repetition contributed shared variance.U}

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