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Xu, Jia; Wei, Tingting; Lv, Pin – International Educational Data Mining Society, 2022
In an Intelligent Tutoring System (ITS), problem (or question) difficulty is one of the most critical parameters, directly impacting problem design, test paper organization, result analysis, and even the fairness guarantee. However, it is very difficult to evaluate the problem difficulty by organized pre-tests or by expertise, because these…
Descriptors: Prediction, Programming, Natural Language Processing, Databases
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Huang, Jiaqin; Xie, Xin; Pan, Yuxi; Li, Guangming; Zhang, Fadi; Cui, Ningjing – SAGE Open, 2022
Self-esteem has always been a hot research object in the field of adolescent mental health. But in longitudinal research, using a single slope to describe the trajectory of adolescent self-esteem is unrealistic. The piecewise growth mixture model (PGMM) was used to fit the data in this study. Selecting from China Family Panel Studies database, a…
Descriptors: Self Esteem, Developmental Stages, Longitudinal Studies, Mental Health
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Yitao, Wang; Hua, Wang – Chinese Education & Society, 2019
Research on the group characteristics and channels for selection of party secretaries at private institutions of higher education has important significance in strengthening leadership by party organizations and perfecting internal governance structures at private institutions of higher education. A survey of 293 private institutions of higher…
Descriptors: Educational Policy, Private Colleges, Public Officials, Governance