Normative disfluency data for early childhood stuttering

Area of Science:

• Speech-Language Pathology
• Developmental Psychology
• Pediatric Audiology

Background:

• Extensive research exists on early childhood disfluency, yet a clear normative reference for stuttering is lacking.
• Distinguishing stuttering from normal disfluency is crucial for early diagnosis and intervention.

Purpose of the Study:

• To provide a normative reference for early stuttering.
• To establish a basis for the differential diagnosis of stuttering versus normal disfluency in young children.

Main Methods:

• Collected disfluency data from 90 children (ages 2-5) with recent stuttering onset.
• Collected data from 54 age-matched normally fluent children.
• Analyzed disfluency types, including stuttering-like disfluencies (SLD) and other disfluencies (OD).

Main Results:

• No significant differences in disfluency were found based on gender or age.
• Stuttering-like disfluencies (SLD) significantly differed between stuttering and normally fluent groups.
• Other disfluencies (OD) did not significantly differ between the groups.

Conclusions:

• Early stuttering is qualitatively and quantitatively distinct from normal disfluency.
• A weighted SLD measure can help differentiate stuttering from normal disfluency.
• Findings have implications for clinical diagnosis and future research in childhood stuttering.