The Evaluation of the Quality of Postgraduate Entrance Examination Based on IRT

  • SONG Xueling ,
  • LIANG Zhengyan
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  • 1. National Education Examinations Authority, Beijing 100084;
    2. School of Psychology, South China Normal University, Guangzhou 510631

Received date: 2022-11-09

  Online published: 2023-05-18

Abstract

The quality evaluation of postgraduate entrance examination is important in management. Based on the answering data of 22,126 subjects in the psychology major of the postgraduate entrance examination in 2022, the quality of the test paper was analyzed by using the IRT through SPSS 21.0 and R. The results showed that, 1) the structure of the test paper was completely consistent with the requirements of the test outline; 2) the range of subjects’ abilities was widely distributed; 3) the test information basically met the requirements. The difficulty level of the test paper is medium to easy; and there are still some poor items, and the proportion of average items is also relatively high. From the perspective of information function, 1) the maximum information content of most items was higher than the expected information content; 2) the proportion of the maximum information content provided by Experimental Psychology, Psychological Statistics and Measurement was higher than the proportion of the information content that should be provided; 3) the test information function curve was on the left as a whole, which was not good for differentiation of groups of subjects with higher ability.

Cite this article

SONG Xueling , LIANG Zhengyan . The Evaluation of the Quality of Postgraduate Entrance Examination Based on IRT[J]. Studies of Psychology and Behavior, 2023 , 21(2) : 253 -259 . DOI: 10.12139/j.1672-0628.2023.02.015

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