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Abstract
The objective of the study was to collect data on the Listening in Spatialized Noise - Sentences Test (LISN-S®; Cameron & Dillon, Citation) from a group of children with normal hearing, over two test sessions, to determine test-retest reliability. The LISN-S produces a three-dimensional auditory environment under headphones, and is presented using a personal computer. Speech reception threshold (SRT) is determined for target sentences presented in competing speech that is manipulated in respect to location (0° versus±90° azimuth) and/or the vocal identity of the speaker/s of the stories (same as, or different to, the speaker of the target sentences). Forty-six children aged five to eleven years took part in the study. Mean changes in performance on retest on the LISN-S conditions and advantage measures ranged from 0.1 dB to 1.1 dB. Reliability (r) ranged from 0.3 to 0.8. All correlations were significant (p < 0.05). Across the range of performance measures, critical differences for test score improvements ranged from 2.5 dB to 4.4 dB, making this test suitable for detecting improvements in performance in an individual child diagnosed with central auditory processing disorder following a period of auditory compensation (such as an FM system), or training.
| Abbreviations | ||
| ANOVA | = | Analysis of variance |
| BKB | = | Bamford-Kowal-Bench sentences test |
| CAPD | = | Central auditory processing disorder |
| CV | = | Coefficient of variation |
| LISN-CD | = | Listening in Spatialized Noise - Continuous Discourse Test |
| LISN-S | = | Listening in Spatialized Noise - Sentences Test |
| mV | = | Millivolts |
| PC | = | Personal computer |
| SCAN | = | Screening Test for Auditory Processing Disorders in Children |
| SIN | = | Speech in noise test |
| SD | = | Standard deviation |
| SE | = | Standard error (of measurement) |
| SHLRC | = | Speech, Hearing, and Language Research Centre |
| SPL | = | Sound pressure level |
| SNR | = | Signal-to-noise ratio |
| SRT | = | Speech reception threshold |
| Abbreviations | ||
| ANOVA | = | Analysis of variance |
| BKB | = | Bamford-Kowal-Bench sentences test |
| CAPD | = | Central auditory processing disorder |
| CV | = | Coefficient of variation |
| LISN-CD | = | Listening in Spatialized Noise - Continuous Discourse Test |
| LISN-S | = | Listening in Spatialized Noise - Sentences Test |
| mV | = | Millivolts |
| PC | = | Personal computer |
| SCAN | = | Screening Test for Auditory Processing Disorders in Children |
| SIN | = | Speech in noise test |
| SD | = | Standard deviation |
| SE | = | Standard error (of measurement) |
| SHLRC | = | Speech, Hearing, and Language Research Centre |
| SPL | = | Sound pressure level |
| SNR | = | Signal-to-noise ratio |
| SRT | = | Speech reception threshold |
Sumario
El objetivo de este estudio fue recoger datos sobre la audición en la prueba de frases en ruido espaciado (LISN-S®; Cameron & Dillon, 2006) en un grupo de niños con audición normal, en dos sesión de evaluación, para determinar la confiabilidad del test–retest. El LISN-S produce un ambiente auditivo tri-dimensional bajo auriculares, y se presenta utilizando una computadora personal. Se determinó el umbral de recepción del lenguaje (SRT) para frases blanco, presentadas con lenguaje competitivo, el cuál es manipulado con respecto a su localización (0° versus±90° azimut), y/o a la identidad vocal del hablante(s) de las historias contadas (igual o diferente del hablante de las frases blanco). Cuarenta y seis niños con edades entre los cinco y los once años formaron parte del estudio. Los cambios medios en el desempeño del re-test en las condiciones del LISN-S y las condiciones de ventaja variaron entre 0.1 dB y 1.1 dB. La confiabilidad (r) varió de 0.3 a 0.8. Todas las correlaciones fueron significativas (p < 0.05). A lo largo del rango de medidas de desempeño, las diferencias críticas para la mejoría en los puntajes de la prueba variaron de 2.5 dB a 4.4 dB, haciendo esta prueba apta para detectar mejoría en el desempeño en un niño que ha sido diagnosticado con un trastorno central de procesamiento auditivo, luego de un período de compensación auditiva (como el uso de un sistema de FM) o de entrenamiento.