Bayley Scales of Infant and Toddler Development™, Fourth Edition
Age Range: 1 to 42 months
Administration: Paper-and-pencil; Q-global®
Completion Time: 30 to 90 minutes (depending upon age of child)
Scores/Interpretation: Subtest level scaled scores, domain level composite scores, percentile ranks, confidence intervals, developmental age equivalents
Scoring Options: Q-global (web-based); Manual
Publication Date: 2019
As an infant grows, we are constantly assessing their cognitive, motor, and language/communication skills to measure their development. Having the right tools to identify potential delays and get interventions in place early on is crucial to their future development.
For over 30 years, professionals like you have relied on the proven Bayley Scales of Infant and Toddler Development, and today, there is even greater reason to do so. The new Bayley-4 is the most comprehensive assessment tool for determining developmental delays in children one month to 42 months old.
NEW! Digital administration, scoring and reporting is available on Q-global, our web-based system that incorporates administration instructions, navigation rules, scoring, and reporting.
- Shorter administration time
- New and revised item content
- Separate screening test available
- Adaptive Behavior subtest from the Vineland® Adaptive Behavior Scales, Third Edition
5 developmental domains