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The Callsign Acquisition Test (CAT) is a new speech intelligibility test developed by the Human Research and Engineering Directorate of the U.S. Army Research Laboratory (ARL-HRED). CAT uses the phonetic alphabet and digit stimuli combined together to form 126 test items.The purpose of this study was to assess the reliability of data collected with shorter versions of CAT.A total of 5 shorter versions...
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