Front | Back |
Why should we measure aspects of stuttering?
|
1. Acess Problem
2. Guide to Treatment Decisions and Programing (to determine the long and short term goals, to assess progress and make modifications)
3. Evaluate Effectiveness of Treatment
4. Demonstrte Accountability
(for yourself, colleafues, clients, funding bodies, development of the profession)
5. Provide Objective Information to clients and others regarding
-severity of stuttering
-progress in treatment
|
How would you measure?
1. Amount of stuttering?
2. Severity of stuttering?
3. Rate of speech?
4. Naturalness?
5. Surface (Overt) features of stuttering?
6. Sub-Surface (Covert) features of stuttering?
|
1. Stuttering frequency (%SS)
2. SSI-4; Severity Raitings
3. Overall speech rate; Articulatory rate
4. Naturalness (9 point raiting scale)
5. stuttering frequency, severity raitings, speech rate, naturalness
6. questionnaires & raiting scales regarding attitudes, anticipation & avoidance, confidence, QoL
|
Describe Stuttering Frequency.
What is it useful for?
What is it highly correlated with?
|
-most commonly used measure of overt stuttering
-may be expressed as:
-% syllables stuttered (%ss) <- most common
-% words stuttered (%ws)
-number of stutters per 100 words
-stuttering frequency is reported in combination with speech rate for older childen and adults
-very useful in; assessmnet, evaluation & tracking progress
-helps distinguish cws from cns
-highly correlated with severity
|
How do you calculate stuttering frequency?
|
# stuttered syllables (or words) / total # syllables (or words) x 100 = %SS (or %WS)
"True Talk" a device that can calculate the above
|
How many utterances would you want to get a representative sample of the client's in order to calculate stuttering frequency?
|
300-500 utterances
|
What are some of the limitations of stuttering frequency when it comes to assessment and diagnosis?
|
-doesn't capture duration of stuttering or physical tension
-does not always reflect severity
-it takes time to develop skilland reliability in counting (poor agreement across clinicians)
|
Describe %SS estimates of severity.
|
<1%SS - WNL
2%-5% - Mild
6%-10% - Moderate
11%-15% - Moderate-Severe
16%-20% - Severe
21+% - Profound
|
Severity Measures are useful in assessing the problem, tracking change and assessing outcome, various types include?
|
-Stuttering Severity Instrument (SSI-4); most commonly used severity instrument (standerdized procedure for assessing severity of children and adults)
-Severity Raiting Scales
|
SSI-4; what does it incorporate, procide and what are it's limitations?
|
Incorporates: %SS (stuttering frequency) + provides norms, duration of 3 longest stutters, physical concomitants (secondary characteristics), naturalness of the individual's speech
Provides: overall score, percentile, verbal descriptor of severity
Limitations: time consuming, need additional testing to demonstrate reliability and validity
|
Severity Raiting Scales are based on the overall impressions of the sample, there are two general types, these are?
|
1. Scales with general descriptions(e.g., Scale for Raiting Severity of Stuttering)
2. Simple numerical scales (e.g., 1-10 scale used by Lidcombe Program)
-the numerical ones are more popular, can be used by clinicans, parents and clients
|
What are the limitations of severity raiting scales?
|
-the reliability is questionable (even with training get quite a range, hard to discriminate a 2 from a 3 or a 7 from an 8)
-may be less sensitive than %SS to small changes in stuttering
-perceptions can drift over time
-need to train clients and continually assess agreement
|
When raiting someone's stuttering, what are the some of the factors to consider in assigning a severity number?
|
1. Frequency of the stutter - the higher the %SS or %WS, the higher the severity raiting
2. Duration of the stutter - the longer the stutter, the higher the severity raiting
3. The type of the stuttering pattern - repetitions are considered mildre (less severe) than prolongations and blocks (more severe)
4. Presence of secondary behaviors - the more, the higher the severity raiting
|
Why do severity raiting scales have clinical utility?
|
-easy to use
-useful in tracking progress
-easy to obtain beyond the clinic
-useful for communicating with parents and clients
|
Describe (Overall) Speech Rate. (what it's used for, how it is reported and etc.)
|
-useful in assessment, uoutcome and evaluation
-at the end of treatment, one wants the client's speech rate to be WNL
-great to use in treatment because can be a target goal and provides feedback to clients
-most often expressed in syllables per minute (SPM)
-includes both dysfluent and fluent speech but excludes long pauses (over 2 sec long)
-reflects time needed to convey content
-provides indication of extent to which stuttering disrupts flow of information
-usually reported in combination with %SS
-inversely related to severity
|
What is the formula for calculating overall speech rate?
|
Total syllables (or words) spoken / tme in seconds
x 60 sec = SPM (or WPM)
|