Changes in English Past Tense Use by Bilingual School-Age Children With and Without Developmental Language Disorder

Measuring English Narrative Microstructure in Preschool Dual Language Learners

PURPOSE

The purpose of the study was to examine the change in specific English microstructure features according to language ability in preschool Spanish-English dual language learners.

METHOD

We collected English narratives from 22 Spanish-English dual language learners with typical language development (TD) and 22 Spanish-English dual language learners with developmental language disorder (DLD) at the beginning and end of their first year in Head Start. Children came from Spanish-speaking homes and were exposed to English and Spanish in their preschool classrooms. We analyzed children's use of English microstructure across time using the Narrative Assessment Protocol.

RESULTS

Both groups showed improvement in overall English microstructure use, although children with TD made greater gains than children with DLD. Phrase structure (noun phrases, coordinating conjunctions, and prepositional phrases) increased in both groups, but more so in children with TD than with DLD. Sentence structure (compound, complex, negative, and interrogative sentences) increased in both groups. Verb use, noun use (Tier 2 nouns and nouns marked with plural and possessive endings), and modifiers (adverbs and adjectives) neither changed across time nor differed between groups.

CONCLUSIONS

Spanish-English dual language learners who attend Head Start and come from Spanish-speaking homes, regardless of language ability, may not readily acquire verbs, nouns, and modifiers during their first year of formal English exposure, suggesting that they would benefit from explicit instruction in these areas. Preschool Spanish-English dual language learners with DLD may make less progress than their peers with TD in phrase structure use, indicating that explicit instruction in this microstructure feature may be beneficial for children with DLD.

Specific Language Impairment in African American English and Southern White English: Measures of Tense and Agreement With Dialect-Informed Probes and Strategic Scoring

Purpose In African American English and Southern White English, we examined whether children with specific language impairment (SLI) overtly mark tense and agreement structures at lower percentages than typically developing (TD) controls, while also examining the effects of dialect, structure, and scoring approach. Method One hundred six kindergartners completed 4 dialect-informed probes targeting 8 tense and agreement structures. The 3 scoring approaches varied in the treatment of nonmainstream English forms and responses coded as Other (i.e., those not obligating the target structure). The unmodified approach counted as correct only mainstream overt forms out of all responses, the modified approach counted as correct all mainstream and nonmainstream overt forms and zero forms out of all responses, and the strategic approach counted as correct all mainstream and nonmainstream overt forms out of all responses except those coded as Other. Results With the probes combined and separated, the unmodified and strategic scoring approaches showed lower percentages of overt marking by the SLI groups than by the TD groups; this was not always the case for the modified scoring approach. With strategic scoring and dialect-specific cut scores, classification accuracy (SLI vs. TD) was highest for the 8 individual structures considered together, the past tense probe, and the past tense probe irregular items. Dialect and structure effects and dialect differences in classification accuracy also existed. Conclusions African American English- and Southern White English-speaking kindergartners with SLI overtly mark tense and agreement at lower percentages than same dialect-speaking TD controls. Strategic scoring of dialect-informed probes targeting tense and agreement should be pursued in research and clinical practice.