A comparison of two methods for measuring listening effort as part of an audiologic test battery
Abstract
Purpose: We evaluated 2 measures of listening effort (a self-report measure and a word recall measure) regarding their suitability for inclusion in a comprehensive audiologic testing protocol. The relationship between the 2 measures was explored, and both measures were examined with regard to validity, sensitivity, and effect on speech intelligibility performance. Method: Thirty adults with normal hearing participated. Speech intelligibility performance was evaluated at 4 signal-to-noise ratios by using keywords embedded in both high- and low-context sentences. Listening effort was evaluated at set intervals throughout the speech intelligibility task. Results: Results obtained with the 2 measures were consistent with expected changes in listening effort. However, data obtained with the self-report method demonstrated greater sensitivity to these changes. The 2 measures were uncorrelated. Under certain conditions, speech intelligibility performance was more negatively affected when the word recall measure was used. Exploration of additional theoretical and practical considerations supported a conclusion that the self-report measure was preferable for measuring listening effort simultaneously with speech intelligibility. Conclusion: The results of this study provide a rationale for preferring the self-report measure of listening effort over the word recall measure when testing audiologic outcomes.
Publication Title
American Journal of Audiology
Recommended Citation
Johnson, J., Xu, J., Cox, R., & Pendergraf, P. (2015). A comparison of two methods for measuring listening effort as part of an audiologic test battery. American Journal of Audiology, 24 (3), 419-431. https://doi.org/10.1044/2015_AJA-14-0058
