Despite earlier claims that language abilities are intact in individuals with Williams syndrome (WS), many studies have shown that language development is often delayed and atypical, that is, it develops in line with different cognitive abilities compared to typically developing populations. It is unclear, however, whether general cognitive…

The evaluation of sign language proficiency needs to be based on measures with well-established psychometric proprieties. To date, no valid and reliable test is available to assess Polish Sign Language ("Polski Jezyk Migowy," PJM) skills in deaf children. Hence, our aim with this study was to adapt the British Sign Language Receptive…

Vocabulary size measures serve important functions, not only with respect to placing learners at appropriate levels on language courses but also with a view to examining the progress of learners. One of the widely reported formats suitable for these purposes is the Yes/No vocabulary test. The primary aim of this study was to introduce and provide…

Language abilities in adolescents with autism spectrum disorders (ASDs) are variable and can be challenging to ascertain with confidence. This study aimed to compare and evaluate different forms of language assessment: standardized language testing, narrative analysis and parent/teacher reports. 14 adolescents with ASD and 14 typically developing…

A considerable amount of studies has been done on the relationship of L2 vocabulary and reading/listening, strategy use and reading/listening, and vocabulary and strategy use in different contexts among different levels of learners; however, little has been known about the relationships among all these variables with the same cohort of learners…

This study investigated the long-term effects of structural priming on children's use of indirect speech clauses in a narrative context. Forty-two monolingual English-speaking 5-year-olds in two primary classrooms took part in a story-retelling task including reported speech. Testing took place in three individual sessions (pre-test, post-test 1,…

Despite the current need for reliable and valid test instruments in different countries in order to monitor the sign language acquisition of deaf children, very few tests are commercially available that offer strong evidence for their psychometric properties. This mirrors the current state of affairs for many sign languages, where very little…

There is little dispute that formulaic sequences form an important part of the lexicon, but to date there has been no principled way to prioritize the inclusion of such items in pedagogic materials, such as ESL/EFL textbooks or tests of vocabulary knowledge. While wordlists have been used for decades, they have only provided information about…

Following the development and standardization of the British Sign Language (BSL) Receptive Skills Test (Herman et al., 1999), the test was made widely available to professionals working with deaf children. Test users were asked to return completed score-sheets on individual children they had tested in order to compare a selection of children from…