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Rate Enhancement. Communication Rates. Conversational speaking rates: 150 wpm -250 wpm AAC rates: 15 wpm. Encoding . Any technique in which the user gives multiple signals that together specify a desired message (Vanderheiden & Lloyd, 1986).

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Communication rates
Communication Rates

  • Conversational speaking rates: 150 wpm -250 wpm

  • AAC rates: 15 wpm


Encoding
Encoding

  • Any technique in which the user gives multiple signals that together specify a desired message (Vanderheiden & Lloyd, 1986).

  • Use of code allows the individual to indicate a small number of items that corresponds to larger vocabulary.


Reasons to use encoding
Reasons to use Encoding

  • Quick retrieval

  • Space availability

  • Advantages of electronic encoding.

    • No need for familiarity with code

    • Automatic translation of code into a spoken or printed message greater independence in producing messages.


Need for quick retrieval
Need for Quick Retrieval

  • Timing Enhancement

    • Require careful timing to be appropriate

    • “Please pick up my feet before you roll my wheelchair forward”

  • Message Acceleration & Fatigue Reduction

    • Frequently Used/Lengthy message: Use of encoding or other strategies (core voc) for QR

    • 100 words account for 60% communicated (Vanderheiden & Kelso, 1987)




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