Linguistic and Cognitive Measures in Arabic-Speaking English Language Learners (ELLs) and monolingual children with and without Developmental Language Disorder (DLD)

Understanding the current level of language knowledge in English Language Learners (ELLs) can present a challenge. The standardized language tests that are commonly used to assess language tap prior knowledge and experience. ELLs may score poorly on such ‘knowledge-based’ measures because of the low levels of exposure to each of their languages. Considerable overlap has been found on several knowledge-based measures (Paradis, 2010) between ELLs and monolingual children with an unexpected delay in language development known as Developmental Language Disorder (DLD). Measures of cognitive processing, on the other hand, are less dependent on ELLs’ linguistic knowledge because they employ nonlinguistic or novel stimuli to tap skills considered to underlie language learning. It has been suggested that processing-dependent tasks such as measures of verbal short-term memory may differentiate ELLs from children with DLD (Kohnert, Windsor, & Yim, 2006; Paradis, Schneider, & Duncan, 2013). This thesis presents three studies that investigated the performance of Arabic-speaking ELLs and monolingual children with and without DLD on linguistic and cognitive measures. Study 1 provided a description of the performance of monolingual Arabic-speaking children on a battery of Arabic language tests. The results of study 1 revealed that the majority of language measures were sensitive to developmental change in younger children between the ages of 6 and 7. Study 2 demonstrated lower standardized scores by ELLs on the Arabic and English knowledge-based language tasks. However, ELLs scored above or at age-level expectations on the cognitive measures, with the exception of an Arabic-nonword repetition task. Study 3 found a significant overlap between ELLs and monolingual Arabic-speaking children with DLD on first language (L1) knowledge-based measures. With the exception of the Arabic nonword repetition task, verbal short-term and working memory tasks distinguished ELLs from children with underlying language impairment. The results indicated that there is a need to develop language assessment measures that evaluate a broad range of language abilities for Arabic-speaking children. The findings also suggested that unlike knowledge-based measures, cognitive measures may be valid assessment tools that minimize the role of linguistic knowledge and experiences and help distinguish between ELLs and children with DLD

Sentence Recall in Monolingual and ELL with and without Parental Concerns about Language Development

Sentence recall has been identified as a potential clinical marker of Specific Language Impairment (SLI). The extent to which sentence recall may be useful in distinguishing children with SLI from English Language Learners (ELL) has not been examined. Despite tapping existing language knowledge, sentence recall may be sufficiently sensitive to reveal differences between these groups. In the present study, 1253 school age children completed a sentence recall task and their parents declared whether their first language was English and whether there were any concerns about language development. Given the lack of a gold standard in identifying language impairment in bilingual groups, we used parental concern to compare four groups: (1) monolingual-no-parental-concerns; (2) monolingual-with-concerns; (3) ELL-no-concerns; (4) ELL-with-concerns. The results indicated that the monolingual-no-concerns group recalled sentences more accurately than all remaining groups while the ELL-with-concerns group performed least well. Interestingly, the monolingual-with-concern group and the ELL-no-concern group achieved almost the similar scores in the middle range. The developmental consistency of these findings was strikin