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Bayley Scales of Infant and Toddler Development | Fourth Edition (Bayley-4)
Bayley™-4 is the most comprehensive assessment tool for determining developmental delays in children.
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Bayley Scales of Infant and Toddler Development Screening Test (Bayley-4 Screening Test)
The Bayley-4 Screening Test can quickly determine if a child is on track developmentally or if further, more comprehensive assessment is needed.
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