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Updated: Apr 27, 2026

Measuring the Functional Abilities of Children Aged 3-6 Years Old with Observational Methods and Computer Tools
Published on: June 20, 2020
Validity and clinical utility of children development assessement using milestones reported by mothers
Insights
Mothers
Area of Science:
- Pediatric Development
- Child Health Monitoring
Background:
- Infant development monitoring is crucial in pediatric practice.
- Early identification of developmental delays is essential.
Purpose of the Study:
- To assess the validity and clinical utility of maternal reports on developmental milestones.
- Comparison with Bayley Scales of Infant Development--second edition (BSID-II) outcomes.
Main Methods:
- 384 children recruited prenatally.
- BSID-II Mental and Motor Scales administered at 12, 24, and 36 months.
- Mothers reported child's age at 8 key developmental milestones by age 3.
Main Results:
- Milestone sensitivity ranged from 25.0% to 75.0%; specificity from 54.1% to 80.2%.
- Maternal reports showed low positive predictive value and high negative predictive value.
Conclusions:
- Parental reports are more effective in identifying children at low risk for developmental delays.
- Less effective in pinpointing children with suspected developmental delays.
Introduction:
The monitoring of infants development during preventive care visits to identify children whose development is concerning for delay is an essential part of pediatric practice.
Study Objective:
The aim of the study was to examine the validity and clinical utility of developmental milestones reported by mothers in assessment of children development compared with the outcomes of BSID-II (Bayley Scales of Infant Development--second edition).
Material And Methods:
The cohort recruited prenatally, included 384 children. The Mental and Motor Scales of BSID-II were administered to each child at the end of the 12th, 24th and 36th month of life. When children were 3 years old, mothers were questioned about their child's age at attainment of 8 significant developmental milestones.
Results:
Sensitivity for the developmental milestones compared with score on the motor and mental scales of the BSID-II varied from 25.0% to 75.0%, specificity from 54.1% to 80.2%. The all of analysed milestones were characterized by low positive predictive value and rather high the negative one.
Conclusion:
Parent report developmental milestones are a better tool for excluding those children who attain milestones rapidly, as a group with low risk of developmental delays, than in identifying children whose development is suspected of being delayed.
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