Assessment 08
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Transcript of Assessment 08
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AAC Assessment
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a process whereby data are collected andinformation is gathered to make intervention and/ormanagement decisions.
Lloyd, Fuller & Arvidson, 1997, p. 524
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How should you proceed ?
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Process?
Ob-Scertainer Carefully shake and tilt your Ob-Scertainer
From the sound & path of the steel ball, determine the shapeand location of the partition or partitions
Draw your hypothesis or best guess in a circle
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2 Approaches
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Comprehensive
Problem Oriented Approach Capability Approach
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Comprehensive AAC assessment
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To determine the best AAC system for an individual
Basic questions, what are. individuals communication needs or goals?
individuals strengths and abilities?
barriers are preventing the individual from achieving his or herfull communication/participation potential?
aids and adaptations that need to be used to accomplish thechilds goals given his or her strengths and abilities, andcurrent circumstances?
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Capability ApproachYorkston & Karlan (1986)
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Identifying individuals level of performance incritical areas that pertain to communicationintervention, such as:
communication,
cognition,
motor control,
vision.
Capability Plus Approach Implement strategies to make individual successful
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Making Decisions about Components of Aided AAC
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Selection technique scanning or direct selection
Input device. switch, keyboard
Selection Set visual, auditory, and/or tactile presentation of items (e.g. letters and
keys on the keyboard) coverage, development
Transmitted Output text on the monitor screen, speech, Braille print-out, movement of a
powered wheelchair Strategies encoding, word prediction, abbreviation expansion
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AAC Assessment Process
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Determine & Develop Question (s) of Interest Determine Direct Selection Technique Current Communication & Needs Cognitive Skills Visual-Motor Motor Control Visual Status Switch Consult Seating, Positioning and Mobility Needs
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CommunicationGamel-McCormick & Dymond, 1994
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Expressive Communication.
What does the student currently use to communicate?
What are communication needs?
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Expressive Communication
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What does the person currently use to
expressively request objects,
continue an action,
stop an action, request social interaction,
express a feeling,
make a choice,
initiate an interaction, terminate an interaction, or
request assistance ?
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Present Ways of Communication
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1. Oral Speech2.Symbolic Representation (symbols, text)3.Reading & Writing Ability4.Non-Oral Communication
5.Communication Effectiveness6.Communication Partners7. Communication Settings8.Message Needs
1. Functional2. Social3. Informational Sharing Conversation4. Developmental & Educational/Vocational Needs
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Receptive Communication
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What type of symbolic representation (object,picture, line drawing, words) do you think thestudent best understands?
Auditory Skills?
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Motor Skills
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Does the student have a hand preference?
Do they have the ability to reach, grasp, grasp andrelease, isolate a finger, and/or point?
In what position is the student able to optimallymove and respond?
What reliable, predictable motor movements doesthe student have?
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Motor Skills
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Positioning Factors that influence access to and functional
use of ACC
Switch Assessment
Determine type and placement of switch (motorcontrol must be consistent, reliable, transparent) Features of switches (e.g. size, feedback, travel,
durability) Functional performance with switch may differ
from evaluation performance
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Functional Vision
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Assess ability to
fixate on a target (visual acuity and field
different sizes, distances and positions to get an idea of.
track a moving target.
localize and discriminate of a particular item on a page
scan along rows and columns
Gradually increase number of items.
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Underlying Principles of Assessment
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Evaluate communication needs and capabilities, inorder to implement the augmentativecommunication system as soon as possible toenable the individual to begin immediate
communication interaction. Identify communication system individual currently uses Determine the skills that an individual has or needs to
develop in order to communicate effectively Refine current methods & identify new methods
Determine effectiveness & efficiency Ultimately, determine optimal way to configure system
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Assessment Resources
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Gamel-McCormick & Dymond (1994) http://acc.k12.ar.us/easter_seals/images/pdf_files/Aug
mentative_Communication_Assessment.pdf
http://www.ttac.odu.edu/Articles/Gamel.html
Communication checklist http://www.wati.org/products/freematerials.html
Augmentative and Alternative Communication (AAC)Connecting Young Kids (YAACK) - aac.unl.edu/yaack/
http://acc.k12.ar.us/easter_seals/images/pdf_files/Augmentative_Communication_Assessment.pdfhttp://acc.k12.ar.us/easter_seals/images/pdf_files/Augmentative_Communication_Assessment.pdfhttp://www.wati.org/products/freematerials.htmlhttp://aac.unl.edu/yaack/http://aac.unl.edu/yaack/http://aac.unl.edu/yaack/http://aac.unl.edu/yaack/http://www.wati.org/products/freematerials.htmlhttp://acc.k12.ar.us/easter_seals/images/pdf_files/Augmentative_Communication_Assessment.pdfhttp://acc.k12.ar.us/easter_seals/images/pdf_files/Augmentative_Communication_Assessment.pdf -
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