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Assessment of children who are severely orthopedically impaired
- 1. Assessment of Children who are Severely Orthopedically Impaired Stephen E. Brock, Ph.D., NCSP California State University Sacramento
- 2. Psychologists Responsibilities Possess knowledge of physiological and psychological aspects of the student’s impairment. Use assessment instruments appropriate for the students with orthopedic impairments. Assess the non-physical correlates of the OI (i.e., intellectual, psychosocial, adaptive behavior, and social/emotional skills). Provide group, individual, and family counseling.
- 3. Examiner Requirements Prior experience working with children with severe OI. – Tests given by persons without experience working with orthopedically impaired students are more likely to be invalid. Awareness of the student’s medical management issues (e.g., mediations, recent surgery, etc.) that may impact testing. – School nurse consultations are important here! An attitude of openness toward individuals with OI.
- 4. Examiner Requirements Avoid the halo effect – Avoid providing cues – When employing ambiguous examinee response methods (e.g., eye gaze), use techniques that allow the examiner to be blind to the correct response. Be especially patient and allow for sufficient response time. – Budget more time for these assessments as when done well they are much more involved evaluations. Be sensitive to examinee fatigue.
- 5. Pre-Assessment Considerations Positioning to facilitate optimal performance. – Consult with a physical therapist Select an environment that minimizes distractions as this population has elevated incidence of attention and concentration difficulties. Determine etiology – May suggest the presence of other handicaps (e.g., birth trauma is also associated with learning disabilities).
- 6. Pre-Assessment Considerations Determine student’s preferred mode of communication (e.g., sign language, communication boards, ESL, etc.) and the need for an interpreter. – Ensure interpreters are trained!!! Have accurate understanding of questions/directions. Don’t give away test answers. Make sure vision and hearing has been assessed and if required glasses are worn/hearing aids are used! Collaboration with OT and PT specialists typically required.
- 7. Communication Issues Assessment of receptive vocabulary is often a key to understanding the child with severe OI. – This area is often far less effected than expressive language. – The PPVT-4th ed. is an effective tool when combined with eye gaze (and/or other other alternative) communication procedures. – http://www.brainshark.com/brainshark/vu/view.asp? pi=103976380
- 8. Perceptual-Motor Issues These skills are typically impaired among the OI population. Consultation with an OT is important in assessing these skills. The primary question is whether the observed difficulties (e.g., poor handwriting) are the result of output (motor) or input (perceptual) processes. – Results of the MVPT-3 and VMI can help to make this distinction.
- 10. Adaptive Behavior Issues It is important to determine the degree of independent functioning in self care and daily living. Consultation with an OT is important in assessing these skills. The primary question is the degree to which the student’s motor limitations affect his or her ability to take care of self and get along with others.
- 11. School Record Review Vision and hearing screening results. School attendance history Prior assessment data Academic performance Family information
- 12. Assessment Issues: Cerebral Palsy Difficulties controlling movement and posture may make assessment challenging. – May cause difficulty responding to timed items. – Oral motor dysfunction may also affect speech production. – You may work with a student who has above average IQ, but obtains deficient scores on measures of intelligence. May cause difficulty manipulating test items. 50% also have mental retardation. High incidence of visual perceptual and visual motor difficulties.
- 13. Assessment Issues: Neural Tube Defects (e.g., spina bifida) Failure in development of the structures of the spinal column early in gestation. – The higher the lesion, the more severe the student’s deficits. – Low normal range of intelligence is typical. Hydrocephalus affects a majority of these students. – Accumulation of cerebrospinal fluid in the ventricles. – Increases risk for lower IQ and perceptual-motor dysfunction. – Increases risk for behavior, attention, concentration, and perseverance difficulties.
- 14. Assessment Issues: Muscular Dystrophy (most common is Duchenne) Progressive muscle weakness. – Affects the ability to manipulate objects. – Eventually affects the respiratory system. – Terminal stage in adolescence or young adulthood. Specific learning disabilities. – Especially reading disabilities.
- 15. Assessment Issues: Connective Tissue Disease (most common is JRA) Symptoms are erratic and unpredictable – Affects the ability to manipulate objects. – May need to postpone testing if the student is having a severe flare- up. Not associated with specific learning disabilities or cognitive delays. May affect school attendance and “availability” for learning.
- 16. Observations and Interviews Will help in determining – needed test accommodations. – typical behavior/performance. – learning strengths and weaknesses. – goals and expectations. – validity of test scores.
- 17. Assessment Tools Modify stimulus demands and response requirements. Eliminate time requirements Use multiple choice formats Choice-pointing responses Pantomiming responses Stabilizing the student’s hand Enlarging stimulus items Unless tests are known to be valid for this population, always consider the possibility that scores may be underestimates.
- 18. Intelligence Testing Wechsler Scales Kaufman Assessment Battery for Children Test of Nonverbal Intelligence Pictorial Test of Intelligence Columbia Mental Maturity Scale
- 19. Language Testing Consult with LSH specialist Peabody Picture Vocabulary Test Expressive One Word Picture Vocabulary Test
- 20. Social & Emotional Developmental crises may be more intense. – School entry is often a significant developmental crisis as the child recognizes differences and limitations. – Adolescence may also be difficult. Resiliency and vulnerability factors will influence adaptation to both congenital and acquired OI. Self concept is fundamental to adjustment. – Piers-Harris – Self-Esteem Inventory – Tennessee Self Concept Scale
- 21. Social & Emotional Drawing tests may not be helpful. Student interviews are useful. Standard measures of personality (e.g., PIC) and behavior (e.g., CBCL) can be used. Issues to explore include: – Social desirability – Lack of motivation – Fears – Social relations – Issues of independence
- 22. Resources Physically Handicapped Children: A Medical Atlas for Teachers (2nd ed.). (Bleck & Nagel, 1982). – Available from the instructor National Information Center for Children and Youth with Disabilities. – Go to www.nichcy.org
- 23. Next Week Preschool Assessment Darren Husted, instructor Read Brassard & Boehm Ch. 1, 4 Review CA Early Start information at: www.dds.ca.gov/EarlyStart/WhatsES.cfm Read section I of CDE document at: www.cde.ca.gov/sp/se/fp/documents/ecadmin.pdf