Test-retest reliability of the urban outdoor situated phoneme (SiP) test*

To introduce the urban outdoor version of the Situated Phoneme (SiP) test and investigate its test-retest reliability. Phonemic discrimination scores in matched-spectrum real-world (MSRW) maskers from an urban outdoor environment were measured using a three-alternative forced choice test paradigm at different phoneme-to-noise ratios (PNR). Each measurement was repeated twice. Test-retest scores for the full 84-trial SiP-test, as well as for four types of contrasting phonemes, were analysed and compared to critical difference scores based on binomial confidence intervals. Seventy-two adult native speakers of Swedish (26–83 years) with symmetric hearing threshold levels ranging from normal hearing to severe sensorineural hearing loss. Test-retest scores did not differ significantly for the whole test, or for the subtests analysed. A lower amount of test-retest score difference than expected exceeded the bounds of the corresponding critical difference intervals. The urban outdoor SiP-test has high test-retest reliability. This information can help audiologists to interpret test scores attained with the urban outdoor SiP-test.

本研究旨在介绍情境语音（Situated Phoneme, SiP）测试的城市户外版本，并考察其重测信度。研究采用三选项迫选测试范式，在不同语音信噪比（phoneme-to-noise ratios, PNR）条件下，针对城市户外环境下的匹配频谱真实环境（matched-spectrum real-world, MSRW）掩蔽声，测量了语音辨别得分。每项测量均重复两次。研究对全量84试次的SiP测试以及四类对比语音单元的重测得分进行了分析，并与基于二项置信区间计算得到的临界差值得分进行了比较。本研究共纳入72名年龄介于26至83岁的瑞典语母语成年受试者，其双耳对称听力阈值范围覆盖正常听力至重度感音神经性听力损失。结果显示，全量测试及各子测试的重测得分均无显著差异，且实际重测得分差值低于预期、超出对应临界差值区间的比例较低。综上，城市户外版SiP测试具有较高的重测信度，该结果可帮助听力学医师解读采用城市户外版SiP测试获得的测试得分。