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The current study explored the usefulness of mobile-based automatic speech recognition (ASR) pronunciation practice by investigating a) its effects on the production of four English vowels, and b) learners' perception of ASR as a learning tool. A total of 19 Korean university students produced 28 minimal pair sentences containing the English vowel contrasts /i/-/ɪ/ and /ɛ/-/ae/ (e.g., I said beat, I said bit) at pretest and posttest, and completed six sessions of ASR practice outside of class that involved voice-typing a short text, minimal pairs in sentences, and decontextualized minimal pairs. Results of acoustic analysis of F1 and F2 formant frequencies showed a meaningful improvement in frontness for the vowel /i/, but no changes for the other vowels. Overall, the majority of the participants perceived ASR as useful for pronunciation practice, but some showed skepticism and frustration regarding the current state of the technology. Further discussed are the problems and limitations that EFL learners experienced during the ASR training.

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Learning how test takers derive their answers, referred to as the test-taking process, is essential to test validation. However, research on test takers' mental process has been impeded by the excessive popularity of quantitative analysis and the limitations of research methods. By using eye-tracking technology, this study investigated Chinese ESL learners' reading processes in the iBT TOEFL reading section for the purpose of test validation. Ninety Chinese ESL students at a large Midwestern university were invited to an eye-tracking lab and asked to take a 20-minute reading test on a computer screen to which an eye tracker was attached. As in Bax and Weir (2012), this study analyzed only high scorers' eye movement data (e.g., gaze plots and fixation durations) based on the predetermined criteria. The reading time spent on the intended reading types was also calculated as evidence of validity. The results showed that participants predominantly exercised careful reading skills below the paragraph level, vocabulary questions seemingly failed to elicit inferencing ability, and expeditious reading rarely occurred. Learners did not spend more time reading a text associated with implicit questions compared to a text associated with explicit questions. The implication of the findings for test validity and test development are also discussed.

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