Phonological features that predict accentedness, comprehensibility, and perceived teaching suitability in Arizona K-12 teachers

Motivated by a proposed administrative practice that would have discriminated against non-native English speaking (NNES) teachers, this study described an extensive phonological analysis on speech samples from ten certified Arizona teachers to investigate linguistic features that differentiate native English speaking (NES) teachers from NNES teachers. In addition, educational stakeholders (n = 141) impressionistically evaluated the speech samples for comprehensibility, accentedness, and perceived teaching suitability. Phonological features were used to predict listeners’ ratings on these three constructs. Multiple phonological features were found to predict comprehensibility, accentedness, and perceived teaching suitability, but each construct was predicted by a unique set of features. Lastly, stakeholders’ evaluations of NES and NNES teachers were analyzed. Despite individual variability in many of the features of NNES and NES teachers’ speech, educational stakeholders rated NNES teachers as more accented, less comprehensible, and less suited to teach.