View source for Bayley Scales of Infant and Toddler Development

==Introduction==

The Bayley Scales of Infant and Toddler Development (BSID) is designed to assess and/or monitor very young children at risk of developmental delays or disorders.<ref name=":0">Del Rosario C, Slevin M, Molloy EJ, Quigley J, Nixon E. How to use the Bayley Scales of Infant and Toddler Development. Archives of Disease in Childhood - Education & Practice. 2020; 319063</ref><ref>Yue A, Jiang Q, Wang B, Abbey C, Medina A, Shi Y, et al. [https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0221675 Concurrent validity of the ages and stages questionnaire and the bayley scales of infant development III in China]. PLoS One. 2019:14</ref> It provides an indication of the child's current developmental level and can also offer a cautious prognosis regarding expected development. The BSID stands out as the most frequently utilized instrument for assessing development during the initial two years of a child's life.<ref>Anderson PJ, de Luca CR, Hutchinson E, Roberts G, Doyle LW. [https://jamanetwork.com/journals/jamapediatrics/article-abstract/383024 Underestimation of the developmental delay by the new Bayley-III Scale]. Arch Pediatr adole. 2010;164:352–6.</ref><ref>Mansson J, Stjernqvist K, Serenius F, Adén U, Källen K. Agreement between Bayley-III measurements and WISC-IV measurements in typically developing children. J Psychoeduc. 2018;309.</ref> The current version of the BSID is the third edition.<ref name=":1" /> It has proven to be a reliable diagnostic method for recognizing children with early developmental delays .<ref>Harris SR, Megens AM, Backman CL, Hayes VE. Stability of the Bayley II Scales of Infant Development in a sample of low-risk and high-risk infants. Developmental Medicine & Child Neurology. 2005; 47(12):820-3</ref><ref>Wu YT, Tsou KI, Hsu CH, Fang LJ, Yao G, Jeng SF. [https://academic.oup.com/jpepsy/article/33/1/102/967178?login=false Brief report: Taiwanese infants mental and motor development - 6-24 months.] Journal of Pediatric Psychology. 2008;33(1):102-8</ref><ref name=":2">Godamunne P, Liyanage C, Wimaladharmasooriya N, Pathmeswaran A, Wickremasinghe AR, Patterson C, et al. [https://bmcresnotes.biomedcentral.com/articles/10.1186/1756-0500-7-300 Comparison of performance of Sri Lankan and US children on cognitive and motor scales of the Bayley scales of infant development]. BCM research notes. 2014; 7(1):1-5</ref> 

===Objective===
The primary purpose of the BSID is to evaluate various areas of a child's development to gain insight into their strengths and potential challenges. 

The key objectives of using the BSID include:<ref name=":0" /><ref name=":4">Griffiths A, Toovey R, Morgan PE, Spittle AJ. [https://bmjopen.bmj.com/content/bmjopen/8/10/e021734.full.pdf Psychometric properties of gross motor assessment tools for children: a systematic review]. BJM Open. 2018;8(10)</ref>
*'''Early identification:''' Detecting developmental delays at an early age, allowing for timely intervention and support.
*'''Monitoring progress:''' Assessing developmental progress over time, particularly for children at risk of developmental delays or disorders.
*'''Research:''' Providing researchers and clinicians with a standardized measure for studying [[Child Development|infant and toddler development]] across different populations.
*'''Intervention planning:''' Assisting in the development of targeted intervention plans for children with identified developmental concerns.
*'''Outcome measurement:''' Evaluating the effectiveness of interventions or treatments by comparing pre- and post-intervention developmental scores.