Assessment 08

7/28/2019 Assessment 08

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AAC Assessment

7/10/2013AAC 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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Documents

Assessment 08