How to use the Bayley Scales of Infant and Toddler Development

Abstract

The Bayley Scales of Infant and Toddler Development—Third Edition (Bayley-III) is a gold standard series of behavioural assessments used by clinicians and researchers to assess the developmental functioning of young children. The rigorous psychometric properties of the tool are attributed to the carefully standardised normative sample and quantitative scoring system. It is a common end-point assessment used in neonatal trials and is routinely used in a clinical setting to assess the development of children at risk of delay. Incidence of developmental delay is higher in clinical populations such as those born preterm or with complications such as neonatal encephalopathy. Early identification of delay is critical as early intervention is most effective in minimising impairment; therefore, routine assessment of developmental outcomes is recommended, particularly among high-risk populations.

Neonatal stroke: Clinical characteristics and neurodevelopmental outcomes

“…BSID III is considered the gold standard developmental assessment tool for this age group. 36,37 Early identification of developmental delay is critical as early intervention may ameliorate subsequent neurodevelopmental impairment. 38 Most of the infants in this study had BSID III scores within the normal range at one and two years of age.…”

Neonatal Hyperglycemia Related to Parenteral Nutrition Affects Long-Term Neurodevelopment in Preterm Newborn: A Prospective Cohort Study

“…A protocol for the collection, measurement, and interpretation of data was discussed and defined before starting the study. It has been demonstrated that BSID-III tends to underestimate neurodevelopmental delay compared with other scales [49]. However, measurement of NDV using different scales, exploring further domains other than those evaluated by BSID, could overcame this bias.…”

Near-Infrared Spectroscopy Monitoring in Pediatric Anesthesiology: A Pro-Con Discussion

“…Reduced perioperative variability in NIRS values is also believed to be a sign of impaired cerebral vascular autoregulation and has been found to be associated with poor neurodevelopmental outcomes at 21 months of age in a mixed population of neonatal cardiac surgery patients [ 20 ]. Neurodevelopmental assessment in that study consisted of the Bayley scales of infant development, which is a standard series of developmental play tasks that derive developmental quotient scores in different domains that can be compared to norm scores obtained from typically developing children of the same age [ 21 ].…”