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Query: UMLS:C0155339 (Brown)
 12,436 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Beliefs about whether or not children receive corrective input for grammatical errors depend crucially on how one defines the concept of correction. Arguably, previous conceptualizations do not provide a viable basis for empirical research (Gold, 1967; Brown & Hanlon, 1970; Hirsh-Pasek, Treiman & Schneiderman, 1984). Within the Contrast Theory of negative input, an alternative definition of negative evidence is offered, based on the idea that the unique discourse structure created in the juxtaposition of child error and adult correct form can reveal to the child the contrast, or conflict, between the two forms, and hence provide a basis for rejecting the erroneous form. A within-subjects experimental design was implemented for 36 children (mean age 5;0), in order to compare the immediate effects of negative evidence with those of positive input, on the acquisition of six novel irregular past tense forms. Children reproduced the correct irregular model more often, and persisted with fewer errors, following negative evidence rather than positive input.
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PMID:The Contrast Theory of negative input. 915 12

Reports present mixed findings on the extent to which the development of receptive language skills in children with severe speech and physical impairments (SSPI) is compromised by their difficulty with speaking (V. W. Berninger & B. M. Gans, 1986; D. V. M. Bishop, B. Byers Brown, & J. Robson, 1990; O. Udwin & W. Yule, 1990). In this study, grammaticality judgments were used to measure the sensitivity of 4 school-age children with SSPI to different morphological errors. These errors included violations of agreement between the subject and auxiliary verbs (e.g., she are falling), the marking of aspect (e.g., she is play the horn), and the marking of past tense on regular and irregular verbs (e.g., he jump, he fall, he falled). Performance of the participants with SSPI was compared to groups of typically developing children and adults. Results indicated that children in the SSPI and control groups made similar judgments. All groups showed high levels of sensitivity to agreement violations, aspect-marking errors, and tense-marking errors involving irregular verbs. Participants with SSPI had greater difficulty detecting tense-marking errors involving regular verbs. Implications for improving clinical assessments within this population are discussed.
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PMID:Evaluating the morphological competence of children with severe speech and physical impairments. 1177 71

In this article, we review three responses to the study and evaluation of grammar in children who speak nonmainstream dialects of English. Then we introduce a fourth, system-based response that views nonmainstream dialects of English, such as African American English (AAE) and Southern White English (SWE) as made up of dialect-specific and dialect-universal features. To illustrate the usefulness of a system-based approach and to distinguish our two terms from others in the dialect literature, we present AAE and SWE relative clause data from two previously published studies. Following this, we present new findings from AAE- and SWE-speaking children's use of past tense and past participles to further demonstrate the value of examining larger units (i.e., systems) of a grammar to identify a child's language strengths and weaknesses. We conclude by arguing that a system-based approach moves clinicians, educators, and researchers beyond a preoccupation with the nonmainstream aspects of children's dialects while also moving us beyond Brown's 14 morphemes. Although the focus of the article is on assessment, the content is relevant to the treatment of grammar because effective promotion of any child's grammar (including the grammars of those who speak nonmainstream dialects of English) will occur only when clinicians, educators, and researchers begin to view the child's grammar as a system rather than as a sum of its parts.
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PMID:Evaluating the Grammars of Children Who Speak Nonmainstream Dialects of English. 2689 31