%0 Journal Article
%T IRT Information Function of Polytomously Scored Items under the Graded Response Model<br>项目反应理论等级反应模型项目信息量
%A LUO Zhao-Sheng
%A OUYANG Xue-Lian
%A QI Shu-Qing
%A DAI Hai-Qi
%A DING Shu-Liang
%A <br>罗照盛
%A 欧阳雪莲
%A 漆书青
%A 戴海琦
%A 丁树良
%J 心理学报
%D 2008
%I 
%X Computerized adaptive testing(CAT) is one of the ultimate areas in the field of item response theory(IRT).Many high stake tests,such as GRE and TOEFL,have their CAT versions. Item selection strategy is the core content of CAT.And item information function(IIF) always is the important index of item selection.Although item information of dichotomously scored items has been extensively studied,item information of polytomously scored items receives much less attention. However,due to the advantages inbred in Co...
%K Graded response model
%K Item information
%K Item response theory
%K Information function
%K Item category parameter priority rule<br>等级反应模型
%K 项目信息量
%K 项目反应理论
%K 信息函数
%K 临近难度等级占优
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=C94E3F05CFD5644C9DAA97BEB9148D4784B6B22E64D84F4E&jid=1EE72F392B87F45015B3CA6D9A7AFA6F&aid=4EC7CDC9D0A7E68BBDD2708546E81C5B&yid=67289AFF6305E306&vid=1371F55DA51B6E64&iid=708DD6B15D2464E8&sid=E477FFDBDE309A4B&eid=82A2BA02DFB40363&journal_id=0439-755X&journal_name=心理学报&referenced_num=1&reference_num=27