title: A Spanish matrix sentence test for assessing speech reception thresholds in noise.
abstract: OBJECTIVE
  To develop, optimize, and evaluate a new Spanish sentence test in noise.
  
  
  METHODS
  The test comprises a basic matrix of ten names, verbs, numerals, nouns, and adjectives. From this matrix, test lists of ten sentences with an equal syntactical structure can be formed at random, with each list containing the whole speech material. The speech material represents the phoneme distribution of the Spanish language. The test was optimized for measuring speech reception thresholds (SRTs) in noise by adjusting the presentation levels of the individual words. Subsequently, the test was evaluated by independent measurements investigating the training effects, the comparability of test lists, open-set vs. closed-set test format, and performance of listeners of different Spanish varieties.
  
  
  METHODS
  In total, 68 normal-hearing native Spanish-speaking listeners.
  
  
  RESULTS
  SRTs measured using an adaptive procedure were 6.2 ± 0.8 dB SNR for the open-set and 7.2 ± 0.7 dB SNR for the closed-set test format. The residual training effect was less than 1 dB after using two double-lists before data collection.
  
  
  CONCLUSIONS
  No significant differences were found for listeners of different Spanish varieties indicating that the test is applicable to Spanish as well as Latin American listeners. Test lists can be used interchangeably.
authors.affiliation: Carl von Ossietzky Universität Oldenburg, Institut für Physik, Medizinische Physik, Oldenburg, Germany. sabine.hochmuth@uni-oldenburg.de
authors.forename: Sabine
authors.initials: S
authors.lastname: Hochmuth
authors.forename: Thomas
authors.initials: T
authors.lastname: Brand
authors.forename: Melanie A
authors.initials: MA
authors.lastname: Zokoll
authors.forename: Franz Zenker
authors.initials: FZ
authors.lastname: Castro
authors.forename: Nina
authors.initials: N
authors.lastname: Wardenga
authors.forename: Birger
authors.initials: B
authors.lastname: Kollmeier
mesh_terms: D000161:Acoustic Stimulation; D000328:Adult; D000704:Analysis of Variance; D001301:Audiometry, Pure-Tone; D001309:Auditory Threshold; D005260:Female; D006801:Humans; D007802:Language; D016015:Logistic Models; D008297:Male; D009622:Noise / Q000009:adverse effects*; D010470:Perceptual Masking; D011237:Predictive Value of Tests; D021641:Recognition, Psychology; D015203:Reproducibility of Results; D013065:Speech Intelligibility; D013067:Speech Perception; D013069:Speech Reception Threshold Test / Q000379:methods*; D055815:Young Adult