Bayley Scales of Infant and Toddler Development | Third Edition Motor Scale

Bayley-III Motor Scale

The Bayley-III® Motor Scale helps identify young children with developmental delay of motor function and guide intervention planning.

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  • Kits

    Starter & complete kits, print & digital

    1 option

    from $416.20
  • Test forms & reports

    Booklets, record forms, answer sheets, report usages & subscriptions

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    from $91.30
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    All tests & materials offered for Bayley-III Motor Scale

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  • Bayley-III Motor Scale Kit
    0158027264 Qualification Level B

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

    In stock $416.20

  • Bayley-III Motor Scale Record Form
    0158027310 Qualification Level B

    Pkg of 25

    In stock $91.30


Age range:
1–42 months old
Publication date:
Qualification level:
1–3 months: 10 minutes; 4–8 months: 15minutes; 9–42 months: 20 minutes
Scales scores, composite scores, percentile ranks, age equivalents, and growth scores
Scoring options:
Manual scoring

Product Details

The Bayley-III Motor Scale offers everything you need to assess motor development in one convenient package.


  • 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.