Bayley III Motor Scale Record Forms


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Bayley Scales of Infant and Toddler DevelopmentĀ  Third Edition (Bayley-III), is a comprehensive tool to identify development issues during early childhood

Bayley-III uses caregiver or parent involvement to optimize input from the childā€™s natural environment.


  • Identify infant and toddler strengths and competencies, as well as their weaknesses.
  • Get normative information consistent with developmental domains identified by current IDEA early childhood legislation.
  • Determine the need for further in-depth assessment.
  • Administer one or more domain subtests individually.
  • Use growth scores to chart intervention progress.


Bayley-III combines superior psychometric standards with two additional scales and more clinically useful features.

  • A core battery of five scales.
  • Playful, engaging toys and activities.
  • Excellent validity and reliability.
  • Scores: standard scores, age equivalents, percentiles, with cut scores and T scores.
  • Optional training materials and scoring assistant.