[Validating abbreviated developmental scale (ADS-1) criterion in the language-hearing domain]

Area of Science:

• Pediatric audiology
• Developmental pediatrics
• Speech-language pathology

Background:

• Early detection of language and hearing disorders in children is crucial for timely intervention.
• Developmental screening tools aim to identify children at risk for developmental delays.

Purpose of the Study:

• To establish the criterion validity of the Abbreviated Developmental Scale (ADS-1) for language and hearing domains in 4- to 5-year-old children.
• To assess the diagnostic accuracy of ADS-1 compared to gold-standard speech and hearing assessments.

Main Methods:

• A validation study involving 96 children aged 4-5 years.
• Language and hearing were assessed using ADS-1 and gold-standard tests (Reynell, audiometry, otoacoustic emissions).
• Criterion validity and correlation were determined using Kappa statistic and SPSS-19 analysis.

Main Results:

• The ADS-1 scale demonstrated 54% sensitivity and 42% specificity.
• Positive predictive value was 87%, but negative predictive value was only 11%.
• A Kappa value of K=-0.0 indicated poor agreement between ADS-1 and gold-standard assessments.

Conclusions:

• The ADS-1 scale exhibits limited predictive ability for accurately classifying children's health status regarding language and hearing.
• Poor agreement suggests ADS-1 is not a valid instrument for screening early language and hearing disorders in this age group.
• The findings do not support the use of ADS-1 as a reliable screening tool for early detection of developmental language and hearing impairments.