Articulation error migration: a comparison of single word and connected speech samples

Area of Science:

• Speech-language pathology
• Childhood speech disorders
• Phonological development

Background:

• Articulation errors are common in children with speech sound disorders.
• Understanding the difference between single-word and connected speech production is vital for accurate assessment.
• Error migration, the change in error patterns between speech contexts, requires further investigation.

Purpose of the Study:

• To compare articulation error frequency and type in single-word versus connected speech.
• To analyze error migration in children with articulation disorders.
• To determine the clinical significance of these findings for speech-language pathologists.

Main Methods:

• Obtained spontaneous single-word and connected speech samples from 20 children (ages 5 years 4 months to 12 years 8 months) with articulation disorders.
• Held vocabulary constant across both speech sample types.
• Analyzed frequency and type of articulation errors, including error migration.

Main Results:

• Significantly more articulation errors were observed in connected speech samples compared to single-word utterances.
• Error migration was evident, indicating a difference in error patterns based on speech context.
• The findings highlight the importance of assessing connected speech for a comprehensive evaluation.

Conclusions:

• Connected speech assessment is more sensitive to articulation errors than single-word assessment.
• Error migration provides valuable insights into a child's overall speech production abilities.
• Speech-language clinicians can use these findings to improve diagnostic accuracy and treatment planning for articulation disorders.