Application of IRT Unfolding Model on "Autonomy in Learning Rating Scale for College Students"
- VernacularTitle:IRT展开模型在“大学生学习自主性量表”中的应用
- Author:
Xiaoling FAN
;
Zhiyong WU
;
Zhe HAN
- Publication Type:Journal Article
- Keywords:
Item response theory;
Unfolding model;
Generalized graded unfolding model
- From:Chinese Journal of Clinical Psychology
2001;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective: Attempt to use generalized graded unfolding model to analyze the item of "Autonomy in Learning Rating Scale for College Students " adequacy of the scale designing and evidence probability of the usage of unfolding model in costructing tests. Methods: Based on randomly selected 600 graduates’ response of the scale, item analysis was carried on in 497 potent subjects. Results: Subjects whose trait continuum were between 2.5-4.0 and -3.5～-3.0 were short, and all the item locations were negative; all the item discriminations were above 0.5; the item information functions of 2, 6, 7, 19, 21, 25, 49, 50, 51 were below 0.4098; the fit plots of the item and test satisfied the requirements. Conclu- sion: Fit index of the whole scale is good; some items need to be revised or deleted; GGUM could be used in constructing attitude scales.
