Intelligibility Rating Scale
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No noticeable differences from normal.
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Intelligible though some differences occasionally noticeable.
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Intelligible although noticeably different.
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Intelligible with careful listening although some words unintelligible
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Speech is difficult to understand with many words unintelligible
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Usually is unintelligible.
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Unintelligible.
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Choose the item which best describes the client's running speech in an
unknown context; do not use half intervals.
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When determining the intelligibility rating, assume the listener is unaware
of context or topic.
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In the report refer to this scale in the following way:
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"His intelligibility was rated a "5" (speech is difficult to understand
with many words unintelligible on a 7 point rating scale where "1"
= no noticeable differences from normal, "7" = unintelligible).