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How is SpeechRater automated scoring different from human rater scoring?

April 26, 2017Automated different Human rater scoring

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How is SpeechRater automated scoring different from human rater scoring?

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SpeechRater scoring is an automated prediction of a score a human rater would assign for the same response. The score is produced by combining the evaluation of several important features of each response (pronunciation, fluency, vocabulary, and grammar.) Together these features cover part of the scoring criteria used by human raters to score TOEFL iBT Speaking test. Human raters scoring TOEFL iBT evaluate each response in the areas of Delivery (pronunciation, rhythm, intonation, rate of speech, pause structure, fluidity), Language Use (vocabulary and grammar), and Topic Development (content and coherence.)* While SpeechRater analyzes features of Delivery and Language Use, it is currently limited in its evaluation of Topic Development features. In general, SpeechRater scoring is based on a subset of the criteria currently evaluated by human raters for TOEFL iBT Speaking test.