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irtplay: An R Package for Online Item Calibration, Scoring, Evaluation of Model Fit, and Useful Functions for Unidimensional IRT
Applied Psychological Measurement ( IF 1.522 ) Pub Date : 2020-05-21 , DOI: 10.1177/0146621620921247
Hwanggyu Lim 1 , Craig S Wells 2
Affiliation  

The R package irtplay provides practical tools for unidimensional item response theory (IRT) models that conveniently enable users to conduct many analyses related to IRT. For example, the irtplay includes functions for calibrating online items, scoring test-takers’ proficiencies, evaluating IRT model-data fit, and importing item and/or proficiency parameter estimates from the output of popular IRT software. In addition, the irtplay package supports mixed-item formats consisting of dichotomous and polytomous items.



中文翻译:

irtplay:用于在线项目校准、评分、模型拟合评估和一维 IRT 有用函数的 R 包

R 包irtplay为一维项目反应理论 (IRT) 模型提供实用工具,可以方便地使用户进行与 IRT 相关的许多分析。例如,irtplay包括用于校准在线项目、对应试者的熟练程度进行评分、评估 IRT 模型数据拟合以及从流行的 IRT 软件的输出中导入项目和/或熟练程度参数估计值的功能。此外,irtplay包支持由二分项和多分项组成的混合项格式。

更新日期:2020-05-21
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