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Bayley Scales of Infant and Toddler Development™, Third Edition Motor Scale
(Bayley-III® Motor Scale)


Overview: An Assessment to Identify Developmental Delay of Motor Function

Age Range: 1–42 months old

Administration: 1–3 months: 10 minutes; 4–8 months: 15minutes; 9–42 months: 20 minutes

Scores/Interpretation: Scales scores, composite scores, percentile ranks, age equivalents, and growth scores

Scoring Options: Manual scoring

Publication Date: 2006


Product Details

One kit helps you to identify developmental delay and plan intervention. The Bayley-III Motor Scale offers everything you need to assess motor development in one convenient package.

Recommended Uses

Use the Bayley-III Motor Scale to identify young children with developmental delay of motor function and guide intervention planning.

Content & Administration

The Fine Motor Subtest Assesses fine motor skills associated with prehension, perceptual-motor integration, motor planning, and motor speed. Visual tracking, reaching, object manipulation, and grasping are also measured.

The Gross Motor Subtest assesses the movement of the limbs and torso. Items assess static positioning; dynamic movement, including locomotion and coordination; balance; and motor planning.

Pricing & Ordering

Order Complete Kit

Order Components

Manual Scoring
  • Kits



  • Bayley-III Motor Scale Kit

    Includes Bayley-III Motor Scale Administration and Technical Manual, 25 Motor Scale Record Forms (with Tracing Design Sheet), and necessary Motor Scale manipulatives

  • Administration Materials



  • Bayley-III Motor Scale Record Form
    Pkg of 25
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P: 800.627.7271
F: 800.232.1223