Home  Michael  want talk  help talk  AAC: testing  My Talker Vocab  Role Models

td>

Observation of Learning and Learning Style as an Assessment Technique in Augmentative and Alternative Communication, BRUCE R BAKER

A critique of standardised tests widely used by Ed Psychs & SLTs versus more effective techniques used by AAC professionals. "To the outside observer, the Alabama evaluation seems to be focusing on a different child... assessment gives us a child with severe disabilities who had benefited little from years of clinical intervention..." The second... painted a different picture. How does a clinician used these disparate results? Read the full paper.

 

 

Age:

 

13 years, 8 months

vs.

Vision and hearing:

Could not screen

Bayley Scales of Infant Development:

MA (Mental Age) 27-30 months

Developmental test of Visual Motor Intergration:

VMI 4.3 years

Goodenough Draw-A-Person test:

3 years, 9 months
Oral Motor:
  • Vowels only - mostly distorted
  • Tongue movement - "Totally Inadequate"
  • No Palate movement
Peabody Picture Vocabulary Test: Age Equivalent 5.11

 

Test of Auditory Comprehension of Language - Revised

 

Age in Months

Word Classes 43-46
Grammatical Morphemes 28-30
Elaborated Sentences 36-39
Total Score

37-38

 

Brigance Diagnostic Inventory of Early Development:

 

Estimated Development Age 4.3 -4.4 years

 

Vineland Adaptive Behavior Scales:

 

Standard Score 25

Domain Age Equivalent (years)
Communications 2.11
Daily Living Skills 3.1
Socialization 2.2

Leiter International Performance Scale:

IQ 26-31, MA 4.2 - 4.3 years

 

Inferences About Cognitive / Linguistic Ability

Markers, Which Support

Attention
  • Visual attention was adequate to work with a 128 location overlay
  • Worked for periods of 45 minutes with verbal redirection
Learning curve
  • Used Clear and Speak Display with single demonstrations of each
  • Evidenced incidental learning
Memory
  • Recalled 28 symbol sequences
  • No evidence of proactive or retroactive interfeence
  • Recalled symbol sequences with greater than a 24 hoour delay
Prediction
  • Made logical icon choices based on language function & meaning
Flexibility
  • Used one icon to represent several concepts
  • Used several icons to represent one concept
  • Switched from one vocabulary set to another as contexts were changed
Sequencing
  • Used two symbol sequences across categories with prompts for order
Pragmatics
  • Established eye contact after accessing Speak Display
  • Took turns in conversation
  • Maintained topic
  • Sustained conversation
  • Used age appropriate language via the voice ouptput device
  • Exhibited sense and appreciation of humour
Problem Solving
  • Created new sequences by combining previously used icons with other logical icons
  • Applied previously learned inoformation to a novel context
Self Evaluation
  • Recognised and repaired access errors
  • Requested assistance appropriately
  • Self-reinforced successes