10 research outputs found
The development of an Afrikaans test for sentence recognition thresholds in noise
OBJECTIVE: The development of a valid and reliable Afrikaans test of sentence
recognition thresholds in noise.
DESIGN: A collection of sentences was developed, rated for naturalness and
grammatical complexity, and digitally recorded using a female speaker. Sentences
found to have similar psychometric curve slopes, with equivalent intelligibility at three
different noise levels, were arranged into 22 phonemically matched lists of ten
sentences each. List equivalence was evaluated in normal-hearing listeners in full
and reduced bandwidth conditions. Test-retest reliability of the remaining lists was
evaluated in a second group of listeners.
STUDY SAMPLE: All listeners were native speakers of Afrikaans with normal hearing.
For evaluation of list equivalence, ten listeners were used. Twenty other listeners
were used to evaluate test-retest reliability.
RESULTS: A collection of eighteen phonemically matched lists was produced. Lists
were found to be of equivalent difficulty in full and reduced bandwidth conditions, and
to have good test-retest reliability in normal-hearing listeners. The average
recognition threshold of these lists was -2.73 dB signal-to-noise ratio (standard
deviation = 0.64 dB), and within-subject variability was 1.22 dB.
CONCLUSIONS: The developed test provides a valid and reliable means of measuring
sentence recognition thresholds in noise in Afrikaans.This project was financially supported by the National Research Foundation of South
Africa
Pancoast tobias syndrome revealing primary epithelioid pleuro-pericardial angiosarcoma: A case report and review of the literature
Adaptation of the HINT (hearing in noise test) for adult Canadian Francophone populations
Sentence recognition in noise: Variables in compilation and interpretation of tests
Tests of sentence recognition in noise constitute an essential tool for the assessment of auditory abilities that are representative of everyday listening experiences. A number of recent articles have reported on the development of such tests, documenting different approaches and methods. However, both the development and interpretation of these tests require careful consideration of many variables. This article reviews and categorizes the stimulus, presentation, subject, response, and performance variables influencing the development and interpretation of tests of sentence recognition in noise. A systematic framework is utilized to document published findings on these variables. Recommendations and guidelines, based on test performance requirements and test objectives, are provided concerning the interpretation of results and the development of new test materials