目的:该研究旨在开发和验证使用四位数的普通话噪声数字(DIN)测试(即,two-,三-,four-,和五位数字)序列。评估了重测信度和标准效度。检查了数字的数量如何影响结果。这项研究可能会为具有特定认知需求(如记忆障碍)的人群提供更明智的DIN测试选择。
方法:修改了用于开发DIN的国际康复听力学指南,以创建测试材料。在听力正常的年轻成年人中确定了每个数字序列的重测可靠性和心理测量功能。每个数字序列的标准有效性是通过将老年成人助听器用户的测量性能与从另外两个完善的噪声句子测试中获得的性能进行比较来确定的:普通话噪声听力测试和普通话汉语矩阵测试。在老年成人助听器用户中,探索了DIN测试每个数字序列的语音接收阈值(SRT)与使用数字跨度测试和阅读跨度测试测得的工作记忆容量之间的关系。一起,研究样本包括54名听力正常的年轻成人和56名老年成人助听器使用者.
结果:与两者相关的坡度-,三-,four-,五位数DIN测试分别为16.58、18.79、20.42和21.09%/dB,分别,平均SRT为-11.11、-10.99、-10.56和-10.02dBSNR,分别。所有数字序列的重测SRT差异不超过0.74dB,表明良好的重测可靠性。使用DIN获得的跨四位数字的SRT之间的Spearman秩相关系数(即,two-,三-,four-,和五位数字)序列和两个句子噪声测试在所有参与者中都是一致的高(rs=0.9),当考虑所有参与者的数据时。数字跨度检验和阅读跨度检验的结果与五位数序列的结果显着相关(分别为rs=-0.37和-0.42),但与两者的结果无关。三-,和四位数字的序列在老年助听器用户。
结论:虽然发现三位数序列适合临床用于评估听觉感知,两位数字序列可用于听力筛查。对于年长的助听器用户来说,五位数的序列可能很困难,其SRT与工作记忆容量有关,应进一步研究其在言语感知评估中的使用。普通话DIN测试被认为是可靠的,调查结果与使用标准化句子测试获得的SRT一致,表明了良好的标准效度。
OBJECTIVE: The study aimed to develop and validate the Mandarin digit-in-noise (DIN) test using four digit (i.e., two-, three-, four-, and five-digit) sequences. Test-retest reliability and criterion validity were evaluated. How the number of digits affected the results was examined. The research might lead to more informed choice of DIN tests for populations with specific cognitive needs such as memory impairment.
METHODS: The International Collegium of Rehabilitative Audiology guideline for developing the DIN was adapted to create test materials. The test-retest reliability and psychometric function of each digit sequence were determined among young normal-hearing adults. The criterion validity of each digit sequence was determined by comparing the measured performance of older adult hearing aid users with that obtained from two other well-established sentence-in-noise tests: the Mandarin hearing-in-noise test and the Mandarin Chinese matrix test. The relation between the speech reception thresholds (SRTs) of each digit sequence of the DIN test and working memory capacity measured using the digit span test and the reading span test were explored among older adult hearing aid users. Together, the study sample consisted of 54 young normal-hearing adults and 56 older adult hearing aid users.
RESULTS: The slopes associated with the two-, three-, four-, and five-digit DIN test were 16.58, 18.79, 20.42, and 21.09 %/dB, respectively, and the mean SRTs were -11.11, -10.99, -10.56, and -10.02 dB SNR, respectively. Test-retest SRTs did not differ by more than 0.74 dB across all digit sequences, suggesting good test-retest reliability. Spearman rank-order correlation coefficients between SRTs obtained using the DIN across the four digit (i.e., two-, three-, four-, and five-digit) sequences and the two sentence-in-noise tests were uniformly high ( rs = 0.9) across all participants, when data from all participants were considered. Results from the digit span test and reading span test correlated significantly with the results of the five-digit sequences ( rs = -0.37 and -0.42, respectively) but not with the results of the two-, three-, and four-digit sequences among older hearing aid users.
CONCLUSIONS: While the three-digit sequence was found to be appropriate for clinical use for assessment of auditory perception, the two-digit sequence could be used for hearing screening. The five-digit sequence could be difficult for older hearing aid users, and with its SRT related to working memory capacity, its use in the evaluation of speech perception should be investigated further. The Mandarin DIN test was found to be reliable, and the findings are in line with SRTs obtained using standardized sentence tests, suggesting good criterion validity.