本文選題：CAT + IRT��； 參考：《貴州師范大學(xué)》2014年碩士論文

【摘要】：基于項(xiàng)目反應(yīng)理論的計(jì)算機(jī)自適應(yīng)測驗(yàn)（Computerized AdaptiveTest,CAT）是一種比傳統(tǒng)測驗(yàn)方式更加快速有效的測驗(yàn)方式。目前，對于CAT的研究多集中在CAT系統(tǒng)的建立、CAT相關(guān)算法研究與優(yōu)化、CAT與其他測驗(yàn)理論的結(jié)合三個方面。罕有文章對CAT在測驗(yàn)中的準(zhǔn)確性及測驗(yàn)效率的進(jìn)行普適研究，尤其是研究在理想狀況下CAT與傳統(tǒng)紙筆測驗(yàn)方式的差異與特點(diǎn)。 本文以EPQ量表當(dāng)中N量表為基礎(chǔ)，首先使用真實(shí)數(shù)據(jù)進(jìn)行模型擬合與參數(shù)估計(jì)，研究在實(shí)際測驗(yàn)中，CAT的可行性以及其測驗(yàn)結(jié)果與傳統(tǒng)紙筆測驗(yàn)的相關(guān)與差異；而后利用Monte-Carlo生成模擬數(shù)據(jù)，對基于IRT的傳統(tǒng)紙筆測驗(yàn)及CAT結(jié)果進(jìn)行分析，排除各種干擾因素之后，進(jìn)一步研究CAT與傳統(tǒng)紙筆測驗(yàn)在理想狀況下，其理論與模型的固有特點(diǎn)，得到以下結(jié)果： （1）CAT效率的提升，是以測驗(yàn)準(zhǔn)確性的有控制的犧牲為條件的，其實(shí)質(zhì)是在測驗(yàn)效率與測驗(yàn)準(zhǔn)確率做平衡，每一個項(xiàng)目的減少，都會造成測驗(yàn)準(zhǔn)確性的犧牲，如何有計(jì)劃的篩選項(xiàng)目，是CAT首要的問題。 （2）題庫項(xiàng)目的增加，對于整個被試群體來說，會使傳統(tǒng)紙筆測驗(yàn)和CAT的測驗(yàn)準(zhǔn)確性增加，傳統(tǒng)紙筆測驗(yàn)準(zhǔn)確性的提升，同時表現(xiàn)在測驗(yàn)標(biāo)準(zhǔn)誤的降低上，而在CAT中，由于本文限定了終止條件的標(biāo)準(zhǔn)誤，最終被試能力估計(jì)值的標(biāo)準(zhǔn)誤并沒有因?yàn)闇y驗(yàn)準(zhǔn)確性的提升而改變，這說明傳統(tǒng)紙筆測驗(yàn)或者CAT所獲得的被試能力估計(jì)的標(biāo)準(zhǔn)誤，無法表明其測驗(yàn)的準(zhǔn)確性。 （3）對于不同能力水平的被試，題庫項(xiàng)目的增加，可能會提升其測驗(yàn)準(zhǔn)確性，也可能會提升其測驗(yàn)效率。
[Abstract]:Computerized Adaptive Test (CAT) based on item response theory is a more rapid and effective test method than traditional methods. At present, the research of CAT mainly focuses on the establishment of CAT system and the combination of cat and other test theories. Few articles have studied the accuracy and efficiency of CAT in testing, especially the differences and characteristics between CAT and traditional paper and pen test methods under ideal conditions. On the basis of N scale in EPQ scale, the model fitting and parameter estimation of real data are used to study the feasibility of cat in the actual test and the correlation and difference between the results of the test and the traditional paper and pen test. Then we use Monte-Carlo to generate simulation data, analyze the traditional paper pen test and CAT result based on IRT, remove all kinds of interference factors, and further study the inherent characteristics of the theory and model of CAT and traditional paper pen test under ideal condition. The following results were obtained: The improvement of cat efficiency is conditioned by the controlled sacrifice of test accuracy, which is essentially a balance between test efficiency and test accuracy, and the reduction of each item will result in the sacrifice of test accuracy. How to plan the selection of items, is the primary issue of CAT. 2) for the whole group, the increase of item bank will increase the accuracy of traditional paper and pen test and CAT test, improve the accuracy of traditional paper and pen test, and decrease the error of test standard, while in CAT, the accuracy of traditional paper and pen test will be improved, while in CAT, the accuracy of traditional paper and pen test will be improved. Because the standard error of the termination condition is limited in this paper, the standard error of the final test ability estimate is not changed by the improvement of the test accuracy, which indicates that the standard error of the traditional paper and pen test or the test ability estimation obtained by CAT. The accuracy of the test cannot be demonstrated. 3) for the subjects with different ability levels, the increase of test bank items may improve the accuracy and efficiency of the test.
【學(xué)位授予單位】：貴州師范大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：B842

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