Clinical Observations of Motor and Postural Skills- 2nd Edition

(COMPS-2)

Becca Price & Shelby Berthelot

Purpose• Performance based screening test • Descriptive measure that helps identify presence of

motor problems with a postural component • Helps identify if additional assessments need to be

performed• Determine type of intervention approach to use • Children ages 5-15

Items

• 6 items:Slow Movements

Rapid Forearm Rotation

Finger-Nose Touching

Prone Extension Posture

Asymmetrical Tonic Neck Reflex

Supine Flexion Posture

Testing Procedures

• Recommended to perform 6 tasks in order

• Last 3 tasks must be performed in order

• Use standardized methods and exact wording in bold

• Therapist performs task first then instructs them to imitate

Test Development and Standardization

• Initial Test– Went from 19 items to 6 – Used by experienced pediatric Ots in 2 cities – 123 children age 5 to 9.11 , 67 with DCD and

56 with no know motor problem

• Upward age extension – 261 children between age 10-16

Psychometric PropertiesReliability:

Test-Retest = .92

Interrater • (4 different raters) = .87

Internal Consistency = .75• Age 5- 9.11 = .77• Age 10- 15.11 = .69

Validity: Content- established by expert opinion Construct- empirical item analysis Test Sensitivity: 100% for ages 5,8,9 82% for ages 6 & 7 Low percentage for ages >9.11Criterion

Concurrent- BOTMP subtests, Developmental Coordination Disorder Questionaire Predictive- Correctly classified ~ 80% of the time

Test Length and Cost

• Takes about 15-20 minutes to administer and score

• Cost:– Manual = $36

– Score Sheets = $18 for 20 sheets

– Therapro.com

Scoring

Test Results

• Less than a 0 indicates problems in motor and postural skills

• Greater than a 0 indicates normal functioning in motor and postural skills

• A weighted score is given for each of the 6 items and a weighted total score is given

Areas of Occupation Addressed

• Play

• Functional Mobility

Assessment Approach• Bottom up

– Tests the different components of motor control

– Measures: • Move slowly and symmetrically

• Cerebellar-vestibular integrity

• Cerebellar coordination

• Vestibular-proprioceptive processing dysfunction

• Degree of ATNR present

• Somato-dyspraxia

Where the Tool is Used

• Rehabilitation Clinic/ Health Care setting

• Education Setting

• Private Pediatric Clinic

Frame of Reference

• Motor control – Movement disorder– Postural stability – Motor coordination

Measurement Concerns • The assessment does not take into

consideration children who have neurological or neuromotor problems, such as cerebral palsy or epilepsy.

• The results do not return normative data in the way of age equivalence.

• The assessment is not meant to measure change in motor function over time.

References

• Clinical Observations of Motor and Postural Skills: 2nd Edition (COMPS). (2012, January 1). Retrieved May 30, 2014, from http://www.therapro.com/Clinical-Observations-of-Motor-and-Postural-Skills-2nd-Edition-COMPS-P7628.aspx

• Wilson, B., et al. (1992). Reliability and construct validity of the clinical observations of motor and postural skills. The American Journal of Occupational Therapy, 46(9), 775-783

• Wilson, B., Pollock, N., Kaplan, B., & Law, M. (2000). Clinical Obervations of Motor and Postural Skills (COMPS-2) ( 2nd ed.). Framingham, MA: Therapro, Inc.