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Arizona Battery for Communication Disorders of Dementia (ABC
Transcript of Arizona Battery for Communication Disorders of Dementia (ABC
A diagnostic battery used to assess and screen dementia patients.
Standardized on Alzheimer's and Parkinson's Disease patients as well as young and older non-disabled adults.
The purpose of this diagnostic battery is to differentiate diagnoses. monitor change over time, and program/discharge planning.
The ABCD diagnostic pattern consists of 17 subtests that assess mental status, auditory comprehension, immediate/delayed recall of stories, word learning, repetition, reading, naming, figure copying, and drawing.
The administration time for the ABCD is approximately 45 minutes - 90 minutes.
Following Commands Subtest
Examines the patient's ability to follow one step, two step, and three step commands.
One Step: Wave.
Two Step: Clap then point.
Three Step: Cough, smile, then whistle.
Image by Tom Mooring
Arizona Battery for Communication Disorders of Dementia (ABCD)
Kathryn Bayles & Cheryl Tomeoda
The mental status subtest is similar the miniental status exam.
The mental status subtest assess the patient's orientation abilities.
E.g.: What month is this? How old are you?
Examiner reads examinee a short story and then the examinee must retell the story to the examiner in as much detail as possible.
The ABCD screens speech discrimination, visual perception, and literacy.
Comparative Question Subtest
Is supper earlier than breakfast
Word Learning Subtest-Controlled Encoding
Visually present the examinee with four words.
Examiner: "Show me" (category cue)
Examinee: Must point to the corresponding item.
Examiner: "Show me the fish"
Examinee: "Points to the word shark"
Step 2 of controlled encoding
Examiner uses a previously presented category cue in question form to assess the patient's word learning ability.
Examiner: "Which was the fish"
Examinee: "The Shark"
*No visual aid is presented
Word Learning Subtest-Free Recall
Examinee is asked to recall all words previously presented within two minutes.
* No visual aid given.
Word Learning Subtest-Cued Recall
Examiner provides the category cue for the target word not recalled during the free recall subtest.
* Free Recall+Cued Recall=Total Recall
Word Learning Subtest-Recognition
Examinee is shown a list of words and asked if these words were presented in the previous subtest.
Example: Sergeant Y*
Examiner verbally produces a 6 syllable or 9 syllable non-meaningful phrase and asks the examinee to repeat.
Object Description Subtest
Examiner provides visual prompt of a nail and asks the examinee to describe the object as completely as possible.
Reading Comprehension Subtest
Word Level: Examiner reads words aloud and the examinee points to the picture that best represents the word.
Sentence Level: Examinee reads and answers question independently.
Generative Naming Semantic Category Subtest
Examinee is given a category and asked to divergent name within a minute.
Categories: Animals & Transportation
Confrontation Naming Subtest
Examinee is presented with pictured and asked to name each one.
Concept Definition Subtest
Examinee is asked to define words to the best of their ability.
Example: Broom, racquet, dominoes.
Generative Drawing Subtest
Examinee was asked to draw a bucket and a clock
Figure Copying Subtest
Examinee is presented with three drawings and asked to imitate the drawing to the best of their ability.
Story Retelling-delayed subtest
Examinee is asked to retell the story previously presented in the beginning of the assessment.
Reliability and Validity
Likes and Dislikes
For examinee- Episodic Memory: the Story Retelling Immediate Subtest
For examiner- Word Learning Subtest (Free and Cued Recall)
For examiner- Repetition Subtest
For both examiner/examinee- Object Description Subtest
Concept Definition Subtest: trellis and abacus
Mental Status Subtest
Generative Naming Subtest (different category would have been better)
Figure Copying Subtest and Generative Drawing Subtest
The reliability of a diagnostic battery is only as reliable as the person administering the exam.
Criterion Validity: Correlated with screening analysis of normal elders, mild Alzheimer's Disease and moderate Alzheimer's Disease. As well Global Detoriation Scale, the Mini Mental State Exam, and the Block Design subtest
Construct Validity: ABCD scores were correlated with the Global Detoriation Scale, the Mini Mental State Exam, and the Block Design subtest.