05259766 is referenced by 157 patents and cites 4 patents.

Disclosed is a method and system for administering to a student a problem in computer science for testing, analysis and feedback. The student is provided with an item pool of predetermined test problems to be selected by the student. The student inputs a solution in response to the problem selected, and the solution program is converted, by lexing and parsing, into an abstract syntax tree representation. Predetermined knowledge base patterns are selected from a knowledge base and compared against portions of the abstract syntax tree. Messages and a score are provided to the student which indicate the correctness or incorrectness of the solution program, as determined by the knowledge base patterns which were matched against the portions of the abstract syntax tree. The present method and system is especially qualified to analyze free-response test items.

Title
Method and system for interactive computer science testing, anaylsis and feedback
Application Number
7/807008
Publication Number
5259766
Application Date
December 13, 1991
Publication Date
November 9, 1993
Inventor
Randy E Bennett
Newtown
PA, US
Warren Sack
Santa Cruz
CA, US
Agent
White & Case
Assignee
Educational Testing Service
NJ, US
IPC
G09B 7/00
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