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The DIAGNOSER project: Combining assessment and learning


DIAGNOSER is an Internet-based tool for classroom instruction. It delivers continuous formative assessment and feedback to high school physics students and their teachers about the correct and incorrect concepts and ideas the students may hold regarding physical situations. That is, it diagnoses misconceptions that underlie wrong answers of students, such as a confusion of velocity with acceleration. We use data about patterns of student responses, particularly consistency of errors from question to question, to improve the system’s understanding of student concepts.


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Correspondence to Anne Thissen-Roe.

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This research was supported by the National Science Foundation, Grant REC9972999, to the University of Washington (E.H., principal investigator). Previous support for the development of DIAGNOSER was received from the James S. McDonnell Foundation.

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Thissen-Roe, A., Hunt, E. & Minstrell, J. The DIAGNOSER project: Combining assessment and learning. Behavior Research Methods, Instruments, & Computers 36, 234–240 (2004).

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  • Student Response
  • Experienced Teacher
  • Human Teacher
  • High School Science Teacher
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