@article {3119, title = {Reliability of broadband middle-ear power-reflectance in younger and older adults: Application of Generalizability Theory.}, journal = {American journal of audiology}, year = {2013}, month = {07/2013}, abstract = {PURPOSE: To assess the reliability of broadband middle-ear power reflectance (BMEPR) and transmittance profiles for chirp and tonal stimuli using generalizability theory (GT). METHOD: In adults without a history of middle-ear disease, the authors assessed the reliability of BMEPR to chirp and tonal stimuli using a multivariate approach based on an analysis of variance model (GT). For comparisons with other published studies, Pearson{\textquoteright}s product-moment correlation coefficients (Pearson{\textquoteright}s r) also were used. RESULTS: Based on GT with chirp stimuli, overall BMEPR measures had good reliability; however, the reliability of individual profiles across frequencies and ears was less than optimal. Lower generalizability coefficients were found when transmittance was evaluated. Test-retest reliability using Pearson{\textquoteright}s r was better for right versus left ears, and mid-frequencies were generally more reliable than those at either extreme of the frequency range. In contrast, tonal stimuli had higher generalizability coefficients and Pearson{\textquoteright}s r values than chirps for all frequencies tested; Pearson{\textquoteright}s r values were also higher for right versus left ears. CONCLUSION: The authors extended the use of GT as a preferred way to evaluate reliability of BMEPR and transmittance profiles for chirps and tones because it allows for a more comprehensive evaluation compared with unidimensional pairwise correlations.}, issn = {1558-9137}, doi = {10.1044/1059-0889(2013/12-0063)}, url = {http://www.ncbi.nlm.nih.gov/pubmed/23824437}, author = {Mahoney, Marty J. and Dennis J. McFarland and Carpenter, Michelle S. and Rizvi, Sabahet and Anthony T. Cacace} }