NDLI: Psychometric functions for shortened administrations of a speech recognition approach using tri-word presentations and phonemic scoring.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Gelfand, Stanley A. Gelfand, Jessica T.
Description	Country affiliation: United States Author Affiliation: Gelfand SA ( Queens College, Flushing, NY, USA. stanley.gelfand@qc.cuny.edu)
Abstract	METHOD: Complete psychometric functions for phoneme and word recognition scores at 8 signal-to-noise ratios from -15 dB to 20 dB were generated for the first 10, 20, and 25, as well as all 50, three-word presentations of the Tri-Word or Computer Assisted Speech Recognition Assessment (CASRA) Test (Gelfand, 1998) based on the results of 12 normal-hearing young adult participants from the original study. RESULTS: The psychometric functions for both phoneme and word scores were very similar and essentially overlapping for all set sizes. Performance on the shortened tests accounted for 98.8% to 99.5% of the full (50-set) test variance with phoneme scoring, and 95.8% to 99.2% of the full test variance with word scoring. Shortening the tests accounted for little if any of the variance in the slopes of the functions. CONCLUSIONS: The psychometric functions for abbreviated versions of the Tri-Word speech recognition test using 10, 20, and 25 presentation sets were described and are comparable to those of the original 50-presentation approach for both phoneme and word scoring in healthy, normal-hearing, young adult participants.
File Format	HTM / HTML
ISSN	10924388
Issue Number	3
Volume Number	55
e-ISSN	15589102
Journal	Journal of Speech Language and Hearing Research
Language	English
Publisher	American Speech-Language-Hearing Association
Publisher Date	2012-06-01
Publisher Place	United States
Access Restriction	Subscribed
Subject Keyword	Discipline Audiology Phonetics Psychometrics Methods Standards Speech Perception Physiology Speech Reception Threshold Test Adult Female Humans Male Models, Theoretical Reference Values Reproducibility Of Results Signal-to-noise Ratio Young Adult Clinical Trial Journal Article Research Support, Non-u.s. Gov't Validation Studies
Content Type	Text
Resource Type	Article
Subject	Medicine Speech and Hearing Linguistics and Language

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