Objectives: The present study investigates whether the LPP-NV captures the emerging and heterogeneous communication skills of children with autism. Further, whether this population demonstrates a unique profile of development on the LPP-NV.
Methods: One hundred children diagnosed with autism (ADI-R and DSM-IV) with two words/signs or less are compared to typically developing children, birth to 1.5 years of age. The LPP-NV is completed by primary caregivers, and includes five subscales: Form, Content, Reference, Use, and Cohesion.
Results: Findings explore the validity and reliability of the LPP-NV as a measure of prelinguistic communication for children with autism. Comparisons are made between children with autism and typically developing children to determine population strengths and weaknesses across subscales. Data analysis is currently underway.
Conclusions: The LPP-NV holds potential as an early communication measure that better captures the broad repertoire of strategies used within this population. Utility as an early screening tool and for identifying areas requiring formal intervention is discussed.