Performative and presuppositional skills in language-disordered and normal children

Area of Science:

• Child language acquisition
• Developmental psycholinguistics
• Clinical linguistics

Background:

• Understanding presuppositional and performative language abilities is crucial for assessing child language development.
• Previous research has yielded varied findings regarding language abilities in children with language disorders.

Purpose of the Study:

• To compare the presuppositional and performative abilities of language-disordered and normal children.
• To investigate language skills while controlling for lexical abilities.
• To explore factors influencing discrepancies in research findings.

Main Methods:

• Comparison of 36 children (18 language-disordered, 18 normal) at the single-word linguistic development level.
• Experimental tasks designed to assess presuppositional and performative abilities.
• Control for children's ability to use required lexical items.

Main Results:

• Both language-disordered and normal children tend to encode changing situational elements.
• Similar levels of imperative and declarative performance intent were observed in both groups.
• Performative and presuppositional behaviors were primarily expressed through word productions for all participants.

Conclusions:

• Language-disordered children demonstrate comparable performative and presuppositional skills to normal children at the single-word level.
• Findings suggest that lexicon size, expressive command, age, and representational skills may explain previous research discrepancies.
• This study contributes to understanding the nuances of early language development in children with and without language disorders.