Imaging system and method of detection indices of test paper quality

Abstract

The invention discloses an imaging system and method of detection indices of test paper quality. The imaging system comprises a collection unit, a statistic unit, a curve fitting unit, an assessment unit and a drawing unit. The method comprises the following steps of: by collecting the assessment information of test papers of markers, making an S-P (Student-Problem) table according to the assessment information; drawing a test paper scoring P-curve according to the data of the S-P table; calculating a test paper CJ (caution index for students) and a self-consistency coefficient P2 of the test papers; and finally, drawing an image of the detection indices of the marking quality of the markers. In the imaging system of detection indices of test paper quality, the accuracy and stability of the test papers are objectively expressed by more data, the assessment results can be visually seen by people, and thus more enlightenment is brought to the future teaching and propositions.

Description

technical field [0001] The invention relates to the technical field of examination paper evaluation, in particular to an imaging system and method for an examination paper quality detection index. Background technique [0002] The quality of the test papers is a reflection on the teaching test: it is not only a reflection on the teacher's teaching, but also a reflection on the students' learning. Therefore, the evaluation of the quality of the test papers is an indispensable link to improve the level of propositions. [0003] The method for judging the quality of test papers in the prior art is usually only the degree of difficulty of the test papers: the formula for calculating the difficulty of objective questions: P1 (difficulty index for objective questions) = the number of people who answered the questions correctly / the number of examinees; the formula for calculating the difficulty of subjective questions: P2 (difficulty index for subjective questions) Index) = average...

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Problems solved by technology

[0005] In view of the deficiencies of the prior art above, the purpose of the present invention is to provide a system and method for visualizing test paper quality detection indicators, so as to solve the problem that the test paper evaluation mechanism in the prior art can only simply evaluate the difficulty of the test paper, The degree of discrimination, etc., cannot objectively express the accuracy and stability of the test paper

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