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Best selling, research-based resources for effective reading instruction and assessment.

Phonics-based, hi-lo, and Lexiled reading materials for struggling readers.


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 Assessments — Motor

Structured Observations of Sensory Integration-Motor (SOSI-M)

Assess proprioceptive and vestibular processing, and motor planning

Authors: Erna Imperatore Blanche, PhD, OTR/L / Gustavo Reinoso, PhD, OTR/L / Dominique Blanche Kiefer, OTD, OTR/L

  • Individual Administration
  • Ages 5 through 14
  • Norm-Referenced
  • Testing Time: 30 Minutes

The SOSI-M is a new nationally standardized assessment of sensory-based motor skills, based in Ayres Clinical Observations, and developed by well-regarded experts in sensory integration.

The SOSI-M includes 14 sets of administered items that assess proprioceptive and vestibular processing, and motor skills.

  1. Romberg (firm and soft surface, eyes open and closed)
  2. Heel to Toe (firm and soft surface, eyes open and closed)
  3. Standing on One Foot (eyes open and closed)
  4. Modified Postural Schilder’s Arm Extension Test
  5. Skipping
  6. Series of Jumps (jumping jacks; symmetric and reciprocal stride jumps)
  7. High Kneeling (right and left weight shift and reach)
  8. Antigravity Extension
  9. Antigravity Flexion
  10. Ocular Movements (vertical and horizontal)
  11. Slow Ramp Movements
  12. Sequential Finger Touching
  13. Diadochokinesis (right, left, and bilateral)
  14. Projected Actions in Time and Space (ball in the air and ball against the wall)

NOTE: SOSI-M is currently in production with an anticipated publication date in 2020.

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Coming in 2020



Item No.




Publication/Shipping date Planned for 2020 SOSI-M Test Kit


See Also... (Sold Separately)


Item No. / Product Title



Quick Neurological Screening Test-3R (QNST-3R)



Visual Skills Appraisal-2 (VSA-2)



Test of Visual-Motor Skills-3 (TVMS-3)



Developmental Test of Visual-Motor Integration - 6 (VMI-6) (Beery VMI)



Goal-Oriented Assessment of Lifeskills



Sensory Processing Measure Preschool (SPM-P)


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