Phonological Intervention Principles, Methods, and a Paradigm.
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Transcript of Phonological Intervention Principles, Methods, and a Paradigm.
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Phonological Intervention
Principles, Methods, and a Paradigm
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Variables in Phonologic Intervention
• Structure or paradigm - “What is the anatomy of a session?” – imitation vs spontaneous – Criterion levels– Programming for generalization
• Intervention approach– traditional - cycling - MPs - MOs – MaxO - ES -
NSIT (recasts) -whole language
• Goal attack strategies• Meaningful words vs NSWs • Number of exemplars
– “depth” vs “breadth” of training
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Deep vs Broad Training
• Deep training: massed(lots) practice on a limited aspect of the sound system– goal is to make new sound contrast automatic
• Broad training: distributed practice over the range and extent of a rule– goal is to provide opportunities for child to
discover new rule
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Goals of Phonological Intervention
• Child learns the new RULE• Production of new contrast becomes
AUTOMATIC
– Density of responses (Automatic)– Bridging activities to program for
generalization(RULE)
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Duality of Phonology
• Two levels of learning– Production– Rule
• Phonetic – Phonemic Continuum
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Phonological Treatment Paradigm: Rationale
• Opportunities to discover RULE
• Opportunities to practice new form(s) in naturalistic play activities (phonemic)
• Focused practice on new form(s) for automaticity (phonetic)
• Linguistic/communicative feedback
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Phonological Treatment Paradigm: Important Considerations
• Meaningfulness
• Contrasts “paired”
• Linguistic feedback
• Pace -- no drill
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Phase I: Familiarization + Production
• Familiarization– Rule– Sounds– Vocabulary
• Production– One treatment set = 20 responses (5 contrasts x 4 repetitions)
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Criteria: Treatment and Generalization
• Treatment Criteria– 70% accuracy across 2 consecutive tx sets (IMIT
-> SPON) Phase 2– 90% accuracy across 2 consecutive tx sets
(Phase 2 -> add new pictures OR move to Phase 3)
• Generalization Criteria– 90% accuracy on target in untrained probe items– If this is met, 50% accuracy on target in
conversation
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Phase 2: Contrasts + Naturalistic Activity
• Imitation– Comparison word first, then target word– Slower models, physical prompts, focus (antecedent
event)– Shadowing, set-ups (during)– Feedback (consequent event)– Gradually fade supports; switch order of presentation
• Naturalistic Play Activities– Sound-loaded communication-centered activities that
bridge focused practice and natural use of new contrasts• brief 5 minute activities that “flood” child with opportunities to
hear and use new contrast
– Dense responses (generally at least 20 responses in 5-8 min)
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Phase 2 Naturalistic Activities
• Programming for generalization involves more than bridging activities, but the way they are implemented
• Similar to the systematic structure of focused stimulation of the contrastive word pairs, naturalistic activities must also have a structure along a continuum of support (or difficulty) that incorporates 3 components:– Functionality– Focus– Feeback
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Examples of Activities at Different Levels
• Level 1: “I spy” or “Bee, bee bumblebee”
• Level 2: Read short story (adapted to increase occurrence of target sound).
• Level 3: Restaurant scenario
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Phase 3: Contrasts within Communicative Contexts
• The focused practice and the play are intertwined
– spontaneous
– communicative• teacher• “go fish”• memory• concentration
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Phase 4: Conversational Recasts
• Develop sound-loaded communicative scenarios
– Naturalistic Speech Intelligibility Training (NSIT)
– Immediate recasts (“hotspots”)– Practice new contrasts within conversational
context– Incorporate self-monitoring activities
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NSIT (con’t)
• “hot spots” are critical moments of awareness and attention in which learning from the recast is maximized
• Activities designed to have high proportional frequency of occurrence of targeted sound in naturalistic activities (i.e., high density)
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Naturalistic Speech Intelligibility Training/Conversational Recasts (Camarata, 1993; 1995)
• Conversation-based model of intervention to parallel “naturalistic” movement in language intervention
• Clinicians recast child’s error productions without use of imitative prompts or direct motor training
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Vowel Errors
• Children with multiple sound errors often also exhibit vowel errors
• Can use contrastive approaches of MP and MO to treat vowel errors (PI or ESL)
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Parent Involvement
• Range of activities to engage parents in intervention
• Naturalistic, sound-loaded play activities that can be implemented within typical daily routines
• Usually 5-10 minutes per day at least once daily
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The Problem of Generalization
• How do you DEFINE generalization?– How is this linked to your
theoretical perspective?
• How do you PROGRAM for generalization?– Specify activities and how
they are linked to your theory
• How do you ASSESS generalization?– Describe the nature and
construction of your generalization measure(s)
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Exercises for Measuring Generalization
• What is the difference between “broad” generalization and “narrow” generalization?”
• How would you measure narrow generalization? Broad generalization?
• How are broad/narrow generalization related to “local” and “global” generalization?