Analysis

The Bayley-III Scales are a developmental assessment tool used to measure the development of infants and toddlers aged 1 to 42 months. The Bayley-III assesses five key areas: Cognitive Development, Language Development, Motor Development, Social-Emotional Development, and Adaptive Behavior.

Purpose

The main goal of the Bayley-III is to evaluate the developmental progress of infants and toddlers in order to identify any developmental delays or difficulties early on. This assessment is important for early intervention and for providing support to children and their families.

Scoring

The scoring of the Bayley-III involves comparing the child’s performance with reference data collected from a large sample of children of the same age. Results are analyzed in percentiles, standard deviations, and developmental indices, providing a comprehensive picture of the child’s developmental status.

References

Bayley, N. (2006). Bayley Scales of Infant and Toddler Development: Administration Manual. San Antonio, TX: Harcourt Assessment, Inc.
Barbu, S., et al. (2018). “Factors Influencing the Longitudinal Stability of Cognitive and Language Scores in Preschoolers: A Study Using the Bayley-III”. Child Neuropsychology.
Vohr, B. R., et al. (2012). “The Relationship Between Early Cognitive and Language Development in Preterm Infants and Later School Performance”. Journal of Pediatrics.