About this trial
Children with developmental language disorder (DLD; also referred to as specific language impairment) experience a significant deficit in language ability that is longstanding and harmful to the children's academic, social, and eventual economic well-being. Word learning is one of the principal weaknesses in these children. This project focuses on the word learning abilities of four- and five-year-old children with DLD. The goal of the project is to build on the investigators' previous work to determine whether, as has been found thus far, special benefits accrue when these children must frequently recall newly introduced words during the course of learning. In this study, the investigators seek to replicate the advantage that repeated retrieval holds over simple exposure to the words appearing in the context of a story book by increasing the degree to which the words are integrated into the story line.
Eligibility criteria
Qualifiers
a significant deficit in language ability (language test score below cutoff for best sensitivity/specificity) or documented age-appropriate language ability.
normal hearing.
no evidence of neurological damage or disease.
scores on tests of nonverbal intelligence above the intellectual disability range
Disqualifiers
failed hearing screening
known neurological damage or disease
scores on tests of nonverbal intelligence below the intellectual disability range (standard score less than 75)
autism spectrum disorder
Trial design
Treatments tested in this trial
- Retrieval-based word learning: Repeated Spaced Retrieval condition
- Retrieval-based word learning: Repeated Study condition
Treatment groups
Sponsors and collaborators
Purdue University
Lead sponsor
National Institute on Deafness and Other Communication Disorders (NIDCD)
Collaborator