Although intelligibility is a core concept in second language (L2) speech assessment and teaching research, the vast majority of previous work relies on audio-only stimuli. The current study set out to examine how linguistic and visual information jointly interact to determine the degree of speech intelligibility. Both first language (L1) and L2…

This research study investigates and compares the operational criteria of three native English teachers (NETs) and three non-native English teachers (NNETs) when assessing English pronunciation of Thai learners. Supposedly, all six participants had already developed their own criteria of evaluating and grading pronunciation by the time the…