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Criteria for Evaluating Formal Tests
- test administration and scoring
- reliability (user friendly manual?, is it vague/confusing?, examiner error, replicability of the test)
- normative sample (how and on whom was the test normed)
- validity (does it measure what it says it will measure)
- appropriateness of test items for multicultural individuals
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Common Errors in Norm Referenced Tests
- measuring treatment progress (use criterion referenced test or data collection instead)
- analyzing individual test items for treatment target selection (its just a snapshot, may ID too many treatment targets)
- making all opinions based on one test (distort what they attempt to measure, just a snapshot)
- ignoring cultural makeup of the sample (may not apply to the client)
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Basal
- point from which progress is recorded
- level at which the client passes all of the items on a test
- assume correctness of items before the established basal
- *allows examiner to get the same info from a shorter test
- *limits client shutdown
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Ceiling
- highest item of a sequence in which a certain number of items has been missed
- assume incorrectness of items past the established ceiling
- *allows examiner to get the same info from a shorter test
- *limits client shutdown
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Oral Mech Exam
provides info about structural (how they develop) and functional (how they perform) adequacy of the articulation used in speech sound production
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Diadochokinetic Tasks
- assess how consistently, accurately, and rapidly a client is able to make repeated movements
- client makes as many movements in the given time OR the clinician gives a number of times to make the movement and see how long it takes the client
- use the norms with caution (small sample with undefined age groups)
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Types of Problems with the Speech Mechanism
- Range of Movement
- Duration of Movement
- Strength of Movement
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Four Types of Occlusion
- Normal
- Neutoclusion
- Distoclusion
- Mesioclusion
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Normal Occlusion
point of the first upper molars fit in the groove between the two anterior and posterior points of the lower molar
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Netroclusion
upper and lower dental arches are in correct occlusion but the individual teeth are misaligned
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Distoclusion
the mandible is too far back in relation to the upper maxilla
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Mesioclusion
mandible is too far forward in relation to the maxilla
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Communication Sampling
- sample of client speech and language in everyday situations
- provides info about client communicative abilities and skills
- should represent 2 contexts/environments (variety in environment, partners, purpose, and tasks)
- gives good qualitative and quantitative data
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General Guideline for a Communication Sample
- minimum of 50 - 100 utterances
- use a recording device
- minimize use of yes/no questions
- minimize questions that can be answered with one word
- ask broad questions
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Analysis of Data for Speech Sound Production
- number of errors
- types of errors (SODA)
- form of errors (phonological processes or distinctive features)
- consistency of errors
- intelligibility
- rate of speech
- prosody (patterns of rhythm and sound)
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Types of Speech Sound Errors
- Substitution
- Omission
- Distortion
- Addition
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Stimulability of Errors
client ability to correct/improve production of erred sound
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