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Pediatric Speech Intelligibility Test

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The Pediatric Speech Intelligibility (PSI) test is a closed-set test composed of 20 monosyllabic words and a 10-sentence procedure. The monosyllabic word lists consist of simple nouns like "bear" and "fork." The sentences consist of two formats. In the first format, the sentences are composed of a noun phrase, verb-ing, and a noun phrase and are preceded by the carrier phrase "show me." An example of a sentence in the first format is "Show me a rabbit painting an egg." In the second format, the sentences are composed of a noun phrase, auxiliary verb-ing, and a noun phrase. An example of a sentence in the second format is "A rabbit is painting an egg" (Jerger, Lewis, Hawkins, & Jerger, 1980; Northern & Downs, 2002). The child is instructed to point to one of the five pictures corresponding to the sentence or word that is heard (Jerger, Jerger, & Lewis, 1981). The PSI test can be administered in quiet, as well as