Asking parents about babbling at 10 months produced valid answers but did not predict language screening result...

Area of Science:

• Developmental Pediatrics
• Speech and Language Pathology
• Child Health Surveillance

Background:

• Early identification of speech and language development is crucial for timely intervention.
• Parental reporting is a potential tool for monitoring infant development, including babbling milestones.
• Assessing the validity of parent-reported developmental data is essential for clinical application.

Purpose of the Study:

• To evaluate the concurrent validity of parent-reported babbling in 10-month-old infants.
• To determine the predictive validity of these parental questions for later language screening failures.

Main Methods:

• Prospective longitudinal study involving 1126 infants with at least one native Swedish-speaking parent.
• Parents were asked three questions regarding their 10-month-old's babbling at routine healthcare visits.
• Concurrent validity was assessed by comparing parent reports to speech-language pathologist evaluations; predictive validity was examined against language screening at 2.5/3 years.

Main Results:

• The parent questions demonstrated 80% concurrent validity in identifying infants lacking canonical babbling (CB).
• Sensitivity for predicting later language screening failure was low at 8%, with a positive predictive value of 40%.
• Only a small proportion of children lacking CB at 10 months failed the later language screening.

Conclusions:

• Parental questions about babbling appear to be valid measures for assessing babbling development at 10 months.
• These questions are not sufficiently predictive to identify children who will fail future language screenings.
• The findings support the inclusion of these babbling questions in 10-month infant surveillance within child health services.