Pa. Hadley et al., Facilitating language development for inner-city children: Experimental evaluation of a collaborative, classroom-based intervention, LANG SP H S, 31(3), 2000, pp. 280-295
Purpose: This study explores the effectiveness of a collaborative, classroo
m-based model in enhancing the development of vocabulary and phonological a
wareness:skills for kindergarten and first-grade children in an inner-city
school district.
Method: Four regular education teachers:from the neighborhood school were r
andomly selected for participation. Children were randomly assigned to clas
srooms following usual school procedures. Two classrooms served as standard
practice controls. In the other two classrooms, a collaborative service de
livery model was implemented. One certified speech-language pathologist tau
ght in each experimental classroom 2 1/2 days per week. The speech-language
pathologist and the regular education teachers engaged in joint curriculum
planning on a weekly basis. Vocabulary and phonological awareness instruct
ion was embedded into ongoing curricular activities. Additionally, explicit
instruction in phonological awareness was planned for a 25-minute small-gr
oup activity center weekly.
Results: Following the 6-month intervention superior gains La were noted in
receptive vocabulary, expressive vocabulary beginning sound awareness, and
letter-sound associations for children in the experimental classrooms as c
ompared to children in the standard practice control classrooms. The childr
en in the experimental classrooms also-showed greater improvement on a dele
tion task in comparison to the children in the standard practice classrooms
. Importantly this task was never used as an instructional activity, and th
us demonstrated generalization to a novel phonological awareness task.
Clinical Implications: The results are discussed with regard to the positiv
e benefits of collaboration in facilitating the language abilities of inner
-city children who are at risk for academic difficulties in the early eleme
ntary grades.