This study evaluated the extent to which measures of lexical diversity (type-token ratio and number of different words produced) differentiated children with specific language impairment (SLI) from children whose language skills were following typical developmental expectations. Analysis of 50- and 100-utterance samples revealed that children with SLI did not significantly differ from their age- and language-equivalent peers on type-token ratio; however, children with SLI did use significantly fewer different words than their age-equivalent peers in these samples. When samples of 100 and 200 tokens were considered, the children with SLI also used significantly fewer different words than their age-equivalent counterparts. Overall, the findings of this study discourage the use of type-token ratio, as traditionally calculated, in many clinical and research activities related to children with SLI. In contrast, the number of different words produced provides a more sensitive and informative estimate of lexical diversity.

Peer mentoring is becoming increasingly popular in UK higher education, however, there remains little good quality, theoretically driven and evaluative research. The current study aims to bridge the gap between theory, practice and evaluation by providing a controlled evaluation of a peer mentoring scheme within UK universities. 109 first year undergraduates from two matched universities completed questionnaires at two time points: during the first week of university and again 10 weeks later. Results focused on direct, mediating and moderating effects of mentoring on levels of wellbeing, integration and retention. Peer mentored individuals showed higher levels of integration to university. Four times as many non-peer mentored students had seriously considered leaving university compared to peer mentored students. Integration partially mediated the relationship between mentoring and intention to stay at university. Moderating effects analyses indicate that mentoring may buffer the effect of the transition to University. Results are discussed in relation to Tinto's theory of student retention, the benefits and practicalities of peer mentoring within UK universities and the methodological limitations within this study

This study examined verb use in a group of preschool-age children with language impairments and two control groups of normally developing children. The specific questions of the study involved the diversity of the language-impaired children's verb lexicons relative to their age- and language-matched counterparts, and the presence of similar frequently used, multipurpose verb forms in both samples. Analysis of transcript data revealed that while language-impaired youngsters relied on a less diverse main verb lexicon than both their age- and language-matched peers, they used a similar set of high frequency verbs.

This study investigated whether children with language learning disability (LLD) differed from typically-developing peers in their ability to learn meanings of novel words presented during reading. Fifteen 9-11-year-old children with LLD and 15 typically-developing peers read four passages containing 20 nonsense words. Word learning was assessed through oral definition and multiple-choice tasks. Variables were position of informative context, number of exposures, part of speech, and contextual clues. The LLD group scored lower than same-aged peers on oral definition (p < .001) and multiple-choice (p < .001) tasks. For both groups, there was no effect for position of informative context (p = .867) or number of exposures (p = .223). All children benefitted from contextual clues. The findings suggested difficulty inferring and recalling word meanings during reading and pointed to the need for vocabulary intervention in the upper elementary years for children with LLD.

Seventy-four preschool-age maltreated children's receptive and expressive language, speech skills, general language and cognitive abilities were assessed to investigate the language, speech and cognitive skills of abused, neglected, and abused and neglected children. While all three groups were delayed, neglect was the type of maltreatment most strongly associated with both expressive and receptive language delays and overall language delay. The three groups did not differ in general cognitive development. The most important feature of our data, relative to a Vygotskian perpective, is that language development is particularly vulnerable in an environment devoid of parent-child social language exchange.