基于扩展知识空间理论的技能自适应测试过程

Adaptive Test Process Based on Extension of Knowledge Space Theory

当前扩展知识空间理论只提出了技能测试,没有给出技能测试的详细过程。定义了问题函数、技能函数以及技能状态函数,完成了知识结构到技能结构的映射,给出了技能自适应测试的详细过程,实现了对受测者技能水平的测试。此外,引入了知识状态的邻居和边界,并对自适应测试过程中选题策略这一关键过程做了进一步优化,使测试更适合受测者的知识特点。

Skill test was proposed in the extension of Knowledge Space Theory, but it gave nothing about the process of skill test. This paper defines question function, skill function, skill state function, and completes the mapping of knowledge structure onto skill structure. It also proposes a concrete process of skill adaptive test and gets the skill level of the testees. Furthermore, it introduces neighbor and boundary of knowledge state and optimizes a key process about selecting strategy in adaptive test, which helps tests to adapt to testees in knowledge.