Treatment Efficacy in Phonological Intervention. What are the variables in treatment efficacy?. What is treatment efficacy?. Olswang (1990) discussed the “3 E’s” of treatment efficacy: 1. Efficiency 2. Effects 3. Effectiveness. Treatment Efficiency.
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What are the variables in treatment efficacy?
Olswang (1990) discussed the “3 E’s” of treatment efficacy:
1. Does treatment work?
- treatment effectiveness
2. In what ways does treatment alter behavior?
- treatment effects
3. Does one treatment work better than another?
- treatment efficiency
3 types of comparisons
1. Treatment models
2. Types of sounds taught
3. Modes of presentation
- MP ~ maximal oppositions
- MP ~ treatment of the empty set
- MP ~ cycles
- MP ~ whole language
- early ~ later developing sounds
- phonetically complex ~ less phonetically
- stimulable ~ non-stimulable
- most knowledge ~ least knowledge
- sound perception ~ sound production
- drill ~ drill/play ~ play
- computerized instruction ~ SLP
Effectiveness: Was therapy responsible for the change
Effects: Was the change significant?
Efficiency: How long did it take to achieve the goal? How much effort was required?
Effectiveness: Does treatment work?
Effects: What is the type and extent of sound change?
Efficiency: Does one treatment work better than another?Treatment Efficacy (Olswang ~ Gierut)