Bayley Scale of Infant Development-III

Posted on: March 5, 2017 | By: rcanfield | Filed under: Bayley Scales of Infant Motor Development (BSID-II, III, IV)
  • The recently posted information is correct with little changes to be made. Slightly updated information includes:
    • Comprehensive kit cost: $1,391
    • Average Reliability Ranges for Subsections: 0.90-0.97
    • Weakness of Test and Measure: This is not an intuitive outcome; individuals need to be familiar with test before administration and may require training.

 

  • References:
    • pearsonclinical.com
    • Maccow, G. Bayley Scales of Infant and Toddler Development-Third Edition [PowerPoint]. Pearson Education, Inc., or its affiliates; 2008. http://images.pearsonclinical.com/images/PDF/Bayley-III_Webinar.pdf

 

Article Summary:

Cahill-Rowley K, Rose J. Temporal-spatial gait parameters and neurodevelopment in very-low-birth-weight preterm toddlers at 18-22 months. Gait & Posture. 2016; 45: 83-89.

 

The purpose of this study was to assess if the use of gait and temporal-spatial components would identify neurodevelopment in very low birth weight toddlers and full term (typically developing) toddlers. Children born preterm (</= 32 weeks) with very low birth weight (VLBW) (n=79), and full term toddlers (n=43) were included in this study with ages ranging from 18-22 months. Ages were adjusted for infants that were born premature.

Gait temporal-spatial parameters were gained through use of GAITRite mat, requiring 2-3 trials with a total of 12 footfalls analyzed during fast walking. A trained individual assessed motor development of premature infants with the Bayley’s Scale of Infant and Toddler Development (BSID-III). The BSID-III scores were later compared to temporal-spatial and gait measurements to assess accuracy, since the BSID-III is already a reliable tool in assessing neurodevelopment in infants and toddlers.

The results of this study indicate that infants born prematurely and with lower BSID-III scores (<85) were born 1 week earlier than those with higher BSID-III score (>/= 85). A wider step width and step length asymmetry was found to be significant in preterm toddlers who scored <85 on BSID-III as compared to typically developing toddlers and preterm toddlers who scored >/= 85. Also gait parameters and GA correlated with BSID-III composite motor scores and gross motor sub-scores.

Weaknesses of this article include relying on parent reported age of when independent walking began, limited amount of preterm toddlers with a lower BSID-III scores (n=12 vs. n=67), and multiple reported sample sizes that conflict throughout article. Strengths of this study include large sample size with concentrated age range and the use of a reliable tool for comparison.

Overall, gait parameters including step width and step length asymmetry may be appropriate for use in the clinic to assess neurodevelopment issues; however, until further research is done BSID-III should be used in combination with gait and temporal-spatial parameters.

 

One response to “Bayley Scale of Infant Development-III”

  1. iversmissen2 says:
    March 6, 2017 at 12:43 am

    This seems like a fairly expensive test although it appears to have very good reliability. The article is also very interesting trying to look at the predictive value of the gait and temporal-spatial components for neural development. Early gait is generally described as unequal step length and wider step width or base of support. The results of this study for preterm toddlers appear to correlate with those two descriptions.

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