Bayley Scales of Infant and Toddler Development
The Bayley Scales of Infant and Toddler Development-Third Edition (BSID-III; 2006) is considered to be the reference standard for developmental assessment. It is an individually administered test, applicable from 1 to 42 months of age. The primary purpose of the BSID-III is to identify children with developmental delay and to provide information for interventions.
The BSID-III was normed on 1700 children (divided into 17 age groups) and development is assessed across five domains: Cognitive (91 items), Language (49 receptive and 48 expressive), Motor (66 fine motor and 72 gross motor), Social-Emotional, and Adaptive. Like its predecessors, the BSID-III is a modified power test. Assessment of the first three domains is accomplished by item administration, while the latter two are completed using caregiver response to a questionnaire. A Behavior Observation Inventory can be completed by both the examiner and the caregiver and allows assessment of the...
References and Readings
- Bayley, N. (1969). The Bayley scales of infant development. San Antonio: The Psychological Corporation.Google Scholar
- Bayley, N. (1993). The Bayley scales of infant development (2nd ed.). San Antonio: The Psychological Corporation.Google Scholar
- Bayley, N. (2006). Bayley scales of infant and toddler development (3rd ed.). San Antonio: The Psychological Corporation.Google Scholar
- Greenspan, S. I. (2004). Greenspan social-emotional growth chart. A screening questionnaire for infants and young children. San Antonio: Harcourt Assessment.Google Scholar
- Harrison, P. L., & Oakland, T. (2003). Adaptive behavior assessment system (2nd ed.). San Antonio: The Psychological Corporation.Google Scholar
- Weiss, L. G., Oakland, T., & Aylward, G. P. (Eds.). (2010). Bayley III: Clinical use and interpretation. Boston: Elsevier.Google Scholar