Theelen-van den Hoek Femke L, Houben Rolph, Dreschler Wouter A
Academic Medical Center Amsterdam, Clinical and Experimental Audiology , The Netherlands.
Int J Audiol. 2014 Nov;53(11):817-28. doi: 10.3109/14992027.2014.922223. Epub 2014 Jun 30.
Matrix sentence tests use words from a fixed word matrix to compose syntactically equivalent, but semantically unpredictable sentences. These tests are suitable for monitoring performance of cochlear implant (CI) users by repeated speech intelligibility testing. This study evaluates the Dutch matrix sentence test in CI users in quiet and in noise. It then investigates the possibility to improve the test-retest reliability for CI users by selecting subsets of sentences.
Repeated speech intelligibility testing was performed in quiet and in noise. The effect of sentence selection on the test-retest reliability was predicted by computer simulations and experimentally evaluated using a cross-over design.
Fifteen post-lingually deafened CI users, of which eleven participated in the cross-over study.
The test-retest reliability equaled 2.3 dB in quiet and 1.3 dB in noise. The simulations predicted an improvement in test-retest reliability, especially in quiet. The cross-over study did not confirm the predictions.
The results of the study suggest that the homogeneity of the sentences is not the prime component underlying the test-retest reliability. The Dutch matrix speech material and the selected subsets of sentences were equally suitable for speech intelligibility testing in CI users.
矩阵句子测试使用固定词库中的单词来组成句法等效但语义不可预测的句子。这些测试适用于通过重复语音清晰度测试来监测人工耳蜗（CI）使用者的表现。本研究评估荷兰语矩阵句子测试在安静环境和噪声环境下对CI使用者的效果。然后研究通过选择句子子集来提高CI使用者重测信度的可能性。
在安静环境和噪声环境下进行重复语音清晰度测试。通过计算机模拟预测句子选择对重测信度的影响，并使用交叉设计进行实验评估。
15名语后聋CI使用者，其中11名参与了交叉研究。
安静环境下重测信度为2.3 dB，噪声环境下为1.3 dB。模拟预测重测信度会提高，尤其是在安静环境下。交叉研究未证实这些预测。
研究结果表明，句子的同质性不是重测信度的主要影响因素。荷兰语矩阵语音材料和所选句子子集同样适用于CI使用者的语音清晰度测试。
