Assessment of Articulation and Phonological Disorders Flashcards

(45 cards)

1
Q

Differential diagnosis:

A

Articulation Disorder:
Functional Etiology
Organic Etiology (CAS; Developmental
Dysarthria)
Phonological Disorder
Difference (Dialect/Bilingualism)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Process of Assessment

A

Interview (taking a case history)
Orofacial examination and hearing screening
Select procedures to achieve goals
1. Screening procedures
2. Standardized assessment of articulation skills
3. Standardized assessment of phonological skills
4. Continuous speech sample
5. Stimulability testing
6. Contextual testing
7. Severity analysis
8. Intelligibility analysis
Analyze and organize the data
Write a report
Closing interview
Apply this assessment data to planning goals/procedures

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Taking a case history

A

Case History: Medical/developmental
information regarding possible causal
correlates and maintaining factors.
Non-organic or Functional/idiopathic
etiology:
Functional nature – not associated
with a neurological/ organic
impairment
Organic etiology:
Organic nature - underlying structural, sensory, or neurological cause or related factor

Diagnostic/Treatment
history—physician/occupational therapist,
physical therapist, previous
speech/language therapy.
Parental Information
Family history of speech problems
Cultural information

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Evaluation of Peripheral Speech Mechanism

A

Evaluation of Peripheral Speech Mechanism:
Assess structure and function of the facial muscles,
lips, tongue, palate, teeth.
Use gloves, tongue depressors, mirror, stopwatch
(Hayden, 2001) Look at:
1. tone
2. phonatory control
3. mandibular control
4. labial facial control
5. lingual control
6. sequenced movement
7. prosody
Look at structures at rest, symmetry, abnormality? Genetic
syndromes?

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Performing an Orofacial Examination cont

A

Looks at FUnction of articulators—view during movement.
How does the child integrate motor movement
Look at sensory motor mechanism (diadochokinetic rate –
rapid repetition of syllables “pataka”, p. 266)
- repeat as rapidly and accurately as possible
-significant in assessment of neuromotor
speech disorders (CAS, dysarthria etc.)
Make appropriate referrals (ENT, Orthodontist etc.)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Conducting a hearing screening

A

To identify children with a possible hearing loss
Child who fails a hearing screening ( and a hearing loss is
suspected) is referred for a complete audiological
evaluation.
Hearing loss may have important diagnostic and treatment
implications

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q
  1. Screening Procedures:
A

Identify if a problem exists/determine whether or not a
more complete articulation evaluation is indicated.
Short conversational sequences
Sentences designed to elicit several productions of
frequently mispronounced sounds
Use of toys/pictures of objects for younger children
Paragraph (if child reads – e.g. “Rainbow passage”)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q
  1. Assessment of articulation skills using Single
    Word Tests:
    Provide information about
A

provide information about child’s sound system
describe phonetic productions in terms of type of error
(SODA) and word positions (I,M, F)
Standardized Tests (most widely used):
- Goldman-Fristoe Test of Articulation (GFTA-3) -
Photo Articulation Test (PAT-3)

Single word samples should always be used along with
continuous speech samples to create a whole picture of the
child’s abilities

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Procedures used to collect data
Articulation

A

Formal Articulation Tests:
Photo Articulation Test – 3 (PAT-3)
Assesses and interprets articulation errors.
Normed on children ages 3 - 8:11 years
full-color photos used to elicit words
stimulus pictures appeal to students
Goldman-Fristoe Test of Articulation (GFTA-3)
Assessment of articulation of consonants (SODA)
Normed on children ages 2 - 21:11 years
Elicits more than one sound in one word
Targets one word productions, words in structured sentence contexts,
sound/word stimulability
Delayed imitation instructions
Arizona-4 – Arizona Articulation and Phonology Scale
All tests have: standard scores, percentiles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Traditional format for recording errors

A

) Correct/incorrect
b) Type of error - responses are categorized by sound
substitutions, omissions, distortions and additions
c) Whole – word phonetic transcription (good in
identifying non-target errors).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q
  1. Assessment of phonological processes
    Function
A

. Assessment of phonological processes using
phonological tests:
Used when speech is highly unintelligible , with multiple
misarticulations
Helps analyze the error patterns across words (not
individualized phonemes in different positions)
For children with difficulty acquiring phonological rules

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Procedures used to collect data
Standardized phonological tests

A

Standardized phonological tests (most commonly
used):
1. Khan-Lewis Phonological Analysis – 2
- Uses the results of the Goldman-Fristoe test to
plot out the phonological processes used
2. Arizona Articulation and Phonology Scale
- Uses the results of the Word Articulation and
Sentence Articulation subtests (Arizona – 4) to
plot out the phonological processes used

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Vocabulary for standard test

A

Raw score: meaningless, just a number
Standard Score: converts the raw score into a different scale that can
be compared to other tests; average is usually 100
Percentile Rank: percentage of children that are functioning at the
same level
Confidence Interval: if the test was given again you were 90% sure
that the child will score within this range.
Clinician should specify whether scores fall within the “mean” or not
Most of the population will fall in the middle of a range, and not on the
extremes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Advantages and disadvantages of standardized
tests

A

Advantages
Short administration time (15-25 min)
Representative sample of English consonants and major phonological
error types
Clinician knows the target word being evoked
Disadvantages:
Single word productions may not represent productions in connected
speech, which has implications for a diagnosis and treatment planning
Limited sampling of sounds and sound contexts (few opportunities to
produce a sound, many untested contexts)
Inadequate sampling of vowels (vowel disorders may be missed)
Test items maybe inappropriate a child who speaks a different dialect

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Continuous Speech Sample

A

dentifies overall intelligibility
Looks at sound changes, can the child hear the
mistakes?

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

RECORDING A SPEECH SAMPLE

A

Audio
 Video
 Selecting the appropriate
environment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Procedures Used to Collect Data
SPEECH SAMPLING
Number of utterance per age

A

Collect a representative sample
Sample size:
100 utterances (older children – 2 years
plus)
50 utterances (younger children)
50 utterances plus a standardized test
20 utterances for those with emerging
phonology
Why is it important?

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

How to encourage a child to talk?

A

Interview parents
Use of toys that child’s likes
Structured activities
Observe child’s speech with caregivers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Procedures Used to Collect Data
WHAT IF THE CHILD IS UNINTELLIGIBLE

A

WHAT IF THE CHILD IS UNINTELLIGIBLE
Structure the assessment as much as
possible to be able to guess the intended
utterance
Repeat the child’s utterance
Provide as much context as possible

20
Q
  1. Contextual Testing
A

The identification of a facilitative phonetic context for correct
production of a specific phoneme
Example: /s/ produced correctly in the context of /sp/, but misarticulated
in other contexts

21
Q

Severity Analysis is affected by

A

Severity is affected by:
1. Speech intelligibility
2. Number of sounds in error/presence of phonological
error patterns
3. Consistency of errors
4. Child’s age
Severity categories: mild, moderate, severe, profound

22
Q

Severity Analysis
Percentage of Consonants Correct

A

Percentage of Consonants Correct (PCC) - Objective measure of
severity (Shriberg & Kwiatkowski, 1982).
Measure of articulatory accuracy in running speech
Collect a transcribe a speech sample
Score only intelligible utterances or those that can be reliably identified
Identify dialectical differences (not incorrect)
Consonants are judged as “correct” or “incorrect” (distorted/subst)
Exclude repetition of consonants in words (ba-balloon)
Exclude repetition words with target consonants
Identify incorrect consonant productions (SODA)

23
Q

Severity analysis formula

A

PCC =
# of correct cons_________________
# of total cons (correct + incorrect cons)x100
Normal speech to Mild (85% or higher accuracy)
Mild-moderate (65%-85% accuracy)
Moderate-severe (50%-65% accuracy)
severe (<50% accuracy)

24
Q

Intelligibility Analysis
Objective analysis of

A

Objective analysis of speech intelligibility:
Collect a speech sample and transcribe it
Calculate intelligibility of words
a). divide the total number of intelligible words by the total
number of words (intelligible + unintelligible)
b). (e.g. 105/250 x 100% = 42% intelligibility for words)
Calculate intelligibility of utterances
a). divide the total number of intelligible utterances by the total
number of utterances (intelligible + unintelligible)
b). (e.g. 62/200 x 100% = 31% intelligibility for utterances)

25
Making a differential diagnosis Articulation Disorder and Typical speech sound production skills:
Typical speech sound production skills: If L2 interference or dialect Errors are within normal developmental range for child’s age Errors are mild, no significant effect on listeners However, consider family’s /child’s reaction/opinion (effect on social life) Articulation Disorder: Errors are limited to a few sounds Errors are not patterned Intelligibility is not significantly impaired Errors are associated with structural, sensory, or neurological deficits
26
Making a differential diagnosis Phonological disorder
Multiple misarticulations Errors are patterned Poor intelligibility Errors do not match adult production Limited syllable shapes Phonetic inventory is restricted (based on child’s age)
27
Articulation disorder subclassified
Articulation disorder subclassified : Known organic origin: structural or sensory (HL, cleft, dental) Neurological origin (CAS, developmental dysarthria) Functional origin ( persistent misarticulations of /s/ or /r/)
28
Phonological impairments subdivided into
Phonological impairments subdivided into: Phonological delay (errors follow developmental pattern: FCD) Phonological disorder (presence of idiosyncratic or nondevelopmental error patterns: backing, ICD).
29
Prognosis
Prognosis - A statement about the estimated course of the disorder and judgment of success (excellent, good, fair, poor) Prognostic variables: 1. Severity 2. CA 3. Motivation 4. Inconsistency (errored sounds are produced correctly some of the time) 5. Associated conditions (attention, cooperation, neurological, sensory, developmental deficits) 6. Treatment history (hx of limited progress) 7. Family support
30
Auditory Discrimination and Perception
Auditory memory span, (remembering digits) - Auditory discrimination( are two syllables the same?) Example: Clinician repeats child’s incorrect production (wabbit) and child identifies an error, even if can’t produce it correctly) - Research has been inconclusive as to the cause- effect relationship between auditory discrimination abilities and articulation skills
31
Independent Analysis of Data
More common for younger children * Involves taking only the client’s productions into account, without reference to the adult model * The focus is on the child’s phonetic inventory, syllable shape inventory , and constraints noted on sounds or sound sequences (word positions in which target sounds are not produced)
32
Emerging Phonology
Covers a period of time when words begin to appear. (late talkers may demonstrate delayed emerging systems, small vocabularies and reduced repertoire of sounds and syllable shapes. Difficult to use common measures of articulation tests, spontaneous speech sampling and speech mechanism Independent Analysis: only taking the child’s productions into account. The articulated speech sounds are NOT compared to an adult norm model. Three types of analysis: inventory of speech sounds Inventory of syllable shapes Constraints noted on sounds or sound sequences
33
34
Goal of assessment
To identify existence of a problem ● 2. To identify the nature of the problem ● 3. To identify the factors maintaining the problem ● 4. To provide a basis for formulating goals of treatment ● 5. To provide a basis for procedural decisions
35
Ways to elicit single word samples
Ways to elicit single word samples: ● naming ● sentence completion ● imitation
36
DISADVANTAGES OF CONNECTED SPEECH
Some children may be reluctant to engage in conversation with the examiner ● May not be able to target all English phonemes ● So...give a single word test and recommend a speech sample at a later date if possible. Some children may be unintelligible
37
5. Stimulability Testing:
Samples a child’s ability to imitate Loading... ● Encourages the individual to attempt productions based on imitation
38
Final Steps of Assessment:
Analyze and organize the data ● Write a report ● Closing interview ● Apply this assessment data to planning goals/procedures
39
Cognitive Level—if reduced can cause:
Reduced articulation ● Impaired memory for sound sequences ● Impaired ability to relate sound with specific movement of articulators ● Impaired understanding of generalization of syntactic and morphological rules ● Impaired ability to compare and contrast
40
Language abilities (through screening):
Language abilities (through screening): ● Often phonological and articulation disorders co- occur with language learning difficulties
41
Analysis of Speech Sound Production:
Independent analysis AND/OR ● Relational analysis - Traditional analysis - Phonological error pattern analysis
42
Independent Analysis: Phonetic inventory continued
List the sounds the child is producing without considering the targets being attempted; - Sounds that occur at least three times are considered part of the child’s productive inventory A sound is productive if it occurs in at least two different words - Sounds that are produced one or two times only are considered marginal
43
Relational Analysis: Relational Analysis of Data
the most commonly used type of analysis ● Involves comparing the client’s production to the target forms seen in the adult standard ● The focus is identification of sounds produced in error and/or error patterns based on comparison of the client’s production to the adult form ● Identifies phonemic inventory – sounds produced contrastively to distinguish word meanings
44
Relational Analysis: Traditional Analysis:
Traditional Analysis: ● Consideration of word positions ● Consideration of the type of errors (SODA) ● Appropriate only for children with few articulation errors and good speech intelligibility (phonetic problem)
45
Relational Analysis: Pattern Analysis:
Relational Analysis: Pattern Analysis: focus on regularities in productions rather than single behaviors description of pattern in terms of features maintained or not maintained in production major characteristics (place, manner, voicing) Phonological processes: pattern of usage that reflects modifications from adult standard production ● Substitution: ● Assimilation: ● Syllable Structure