Campus Units

World Languages and Cultures

Document Type


Publication Version

Accepted Manuscript

Publication Date


Journal or Book Title

Journal of Second Language Pronunciation




This study examined longitudinal changes in second language (L2) interlocutors’ mutual comprehensibility ratings (perceived ease of understanding speech), targeting comprehensibility as a dynamic, time-varying, inter action-centered construct. In a repeated-measures, within-participants design, 20 pairs of L2 English university students from different language backgrounds engaged in three collaborative and interactive tasks over 17 minutes, rating their partner’s comprehensibility at 2–3 minute intervals using 100-millimeter scales (seven ratings per interlocutor). Mutual comprehensibility ratings followed a U-shaped function over time, with comprehensibility (initially perceived to be high) being affected by task complexity but then reaching high levels by the end of the interaction. The interlocutors’ ratings also became more similar to each other early on and remained aligned throughout the interaction. These findings demonstrate the dynamic nature of comprehensibility between L2 interlocutors and suggest the need for L2 comprehensibility research to account for the effects of interaction, task, and time on comprehensibility measurements.


This accepted article is published as Trofimovich, P., Nagle, C. L., O’Brien, M. G., Kennedy, S., Taylor Reid, K., & Strachan, L. (July 8, 2020). Second language comprehensibility as a dynamic construct. Journal of Second Language Pronunciation. Doi:10.1075/jslp.20003.tro . Posted with permission.

Copyright Owner

John Benjamins Publishing Company



File Format


Published Version