The Gilliam Autism Rating Scale 3rd edition
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Audio Transcript Auto-generated
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My assessment review will cover the gilliam autism rating scale
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which is also referred to as the gars three.
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This assessment has six sub tests and it is utilized to screen people ages
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3-22 years old for autism spectrum disorder which is also referred to as AS.
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D.
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The assessor of the guards three
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should be a person who has had the opportunity
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to observe the individual or at least six hours
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during the assessment.
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The assessor will rank the individual on a scale from zero,
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which means that it is not at all like the individual
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two or three, which is very much like the individual.
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The Guards three has six sub tests.
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Four of the sub tests are used for any individual that is being assessed,
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but there are two more sub tests that are used if the individual is verbal,
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the assessment has 58 items that are split up into the six sub tests.
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If the assessor is not able to make a decision about a ranking of an item,
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then they can delay choosing a ranking.
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Get advice from someone who has observed the individual for six
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or more hours or use any previous observations of this individual.
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A raw score
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percentile and scaled sub scale will be available.
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The composite score is called the autism index which is
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based on the sub scores from the sub tests.
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The higher the individual score
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is, the more likely it is. The individual has A. S. D.
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The score also correlates to the severity of asd.
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The composite score is more reliable and valid
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than the sub scores but the sub scores can
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be used to determine the strengths and
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weaknesses of the individual being assessed.
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The Guards three has internal test retest and inter rater reliability.
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The Guards three offers robust measures and a good scorer agreement.
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There is also stability within the scores.
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The Guards three has content criterion,
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differential convergent and predictive validity.
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This assessment was developed with the use of definitions of A. S. D.
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And is supported by conventional item analysis.
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And this assessment correlates with other autism
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rating scale assessments as there is a
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correlation between the composite score of this
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assessment and other measures of A S.
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D.
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This assessment also has high accuracy.
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The Guards three is a quick assessment and easy to complete for the assessors.
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The assessment is very reliable and valid with regard to the composite score.
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The sub scores may not always indicate A S. D.
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But are good references for identifying strengths
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and weaknesses of the individual being assessed.
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This assessment may cause someone with an intellectual
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disability to be mistaken for having ASd.
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However,
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this assessment can be used to assist in diagnosing a person with
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asd but should never be the sole factor in the diagnosis.
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The references I used for my project are here