Automated Speaking Assessment: Using Language Technologies to Score Spontaneous Speech (Innovations in Language Learning and Assessment at ETS) - Softcover

Softcover

ISBN 10: 1138056871 ISBN 13: 9781138056879

Publisher: Routledge, 2019

Synopsis

Automated Speaking Assessment: Using Language Technologies to Score Spontaneous Speech provides a thorough overview of state-of-the-art automated speech scoring technology as it is currently used at Educational Testing Service (ETS). Its main focus is related to the automated scoring of spontaneous speech elicited by TOEFL iBT Speaking section items, but other applications of speech scoring, such as for more predictable spoken responses or responses provided in a dialogic setting, are also discussed. The book begins with an in-depth overview of the nascent field of automated speech scoring―its history, applications, and challenges―followed by a discussion of psychometric considerations for automated speech scoring. The second and third parts discuss the integral main components of an automated speech scoring system as well as the different types of automatically generated measures extracted by the system features related to evaluate the speaking construct of communicative competence as measured defined by the TOEFL iBT Speaking assessment. Finally, the last part of the book touches on more recent developments, such as providing more detailed feedback on test takers’ spoken responses using speech features and scoring of dialogic speech. It concludes with a discussion, summary, and outlook on future developments in this area. Written with minimal technical details for the benefit of non-experts, this book is an ideal resource for graduate students in courses on Language Testing and Assessment as well as teachers and researchers in applied linguistics.

About this title

About the Author

Klaus Zechner is a Senior Research Scientist at the Educational Testing Service and leads a team of speech scientists within the NLP & Speech group in the R&D division.

Keelan Evanini (Ph.D., University of Pennsylvania) is a Research Director at the Educational Testing Service.

Edition details

• Publisher: Routledge
• Publication date: 2019
• Language: English
• ISBN 10: 1138056871
• ISBN 13: 9781138056879
• Binding: Paperback
• Edition number: 1
• Number of pages: 228
• Editor: Zechner Klaus