Speech Recognition for Education

Wang et al. (2018) pdf

• Automated scoring model for evaluating English spoken responses
• SpeechRater gave a significantly lower score than human raters for German
• SpeechRater scored in favor of Chinese group, with H1-rater scores higher than mean

  Loukina & Buzick (2017) pdf

• a model (the SpeechRater) automatically scoring open-ended spoken responses for speakers with documented or suspected speech impairments
• SpeechRater was less accurate for test takers who were deferred for signs of speech impairment (ρ² = .57) than test takers who were given accommodations for documented disabilities (ρ² = .73)

Loukina et al. (2019) pdf

• Models providing automated speech scores on English language proficiency assessment
• L1-specific model trained on the speaker’s native language was the least fair, especially for Chinese, Japanese, and Korean speakers, but not for German speakers
• All models (Baseline, Fair feature subset, L1-specific) performed worse for Japanese speakers