Reliability Study of DINA Model

• Main Authors: Lin, Jufei, 林汝霏
• Other Authors: Kuo, Borchen
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/34811686548869154208

碩士 === 國立臺中教育大學 === 教育測驗統計研究所 === 101 === In recent years, there were many studies on DINA models. In this study, through the knowledge structure to understand the cognitive attributes of these items, and explore the impact of different variables on the reliability of the attributes in the DINA model. This study through a simulation study to explore a fixed item length, that in different item parameters, in different item measuring the average number of skills for attribute reliability; the same as item measuring the average number of skills, the different item parameters, and different item length that will affect attribute reliability; with the data to simulate the experimental properties, compare items of reliability and consistency of the attribute validity. The results of this study are found : 1. Fixed item length, in the same item measuring the average number of skills, when the item parameters increase over figures, their attribute reliability followed by lower; 2. Fixed item length, the same item parameters, with the increase of number of item measuring the average number of skills, that attribute reliability followed by increased; 3. The same item measuring the average number of skills, in the same item parameters, with the increase item length, that attribute reliability will be followed by increased; 4. The same item measuring the average number of skills, compare three different items length, item parameters with increase, that attribute reliability will be reduced; 5. The result of empirical data and simulation data are conformed; 6. To the simulation data, the estimation results of attribute reliability and estimation results of attribute validity are consistency in the item length and item parameters..