Pragmatic language development in language impaired and typically developing children: incorrect answers in context

Area of Science:

• Developmental Psychology
• Linguistics
• Speech-Language Pathology

Background:

• Children's understanding of implied meanings (implicatures) is crucial for communication.
• Specific Language Impairment (SLI) can affect pragmatic language skills.
• Pragmatic Language Difficulties (PLD) represent a specific challenge within SLI.

Purpose of the Study:

• To investigate how children with SLI, including those with PLD, answer pragmatically demanding questions.
• To compare the performance of children with SLI and PLD to typically developing peers.
• To explore the role of context presentation (storybook vs. verbal) in pragmatic understanding.

Main Methods:

• Ninety-seven children participated: 30 with SLI (12 with PLD), 32 typically developing (5-6 years), and 35 typically developing (7-11 years).
• Participants answered questions targeting implicatures based on a storybook and verbal scenarios.
• Incorrect answers were analyzed for contextual use and relevance.

Main Results:

• Children with SLI produced incorrect answers similar to younger typically developing children, indicating developmental delay.
• Children with PLD generated significantly more irrelevant answers than other groups.
• PLD group struggled most with verbal-only context, highlighting modality effects.

Conclusions:

• Findings suggest a developmental lag in pragmatic language for children with SLI.
• PLD presents a distinct challenge, particularly with verbal communication.
• Results inform cognitive theories of communication and clinical interventions for language impairments.