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flexMIRT是可用的先进的IRT软件

，一个用于项目分析和测试评分的多档次、多维和多组项目反映理论（IRT）软件包。flexMIRT合用于各类一维和多维项目反映理论模型（也称为项目成分分析模型）以及诊断分类模型

，合用于任一数量组的单水平和多水平数据。

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flexMIRT是易于使用的

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基于Windows的flexMIRT拥有图形用户界面（GUI）

，有64位版本。它拥有直观的语法

，能够在号令行模式下无缝运行

，以实现大批量出产。用户手册演示了各类带有注解的输入和输出的分析。

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flexMIRT是矫捷的

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1xBETIRT软件能够合用于各类项目级模型

，蕴含1PL、2PL、3PL、分级响应模型、广义部门信誉模型和诊断分类模型。它可能适应多个维度、数据内的依赖性（即多水平）、交叉随机效应、协变量和潜在特点的偏离正态性。

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flexMIRT是急剧的

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随着现代CPU架构朝着多核设计的方向发展

，flexMIRT使用并行处置

，通过将负载自动分配到多个可用的主题或处置单元来进一步加快推算速度。在可能的情况下

，flexMIRT使用降维来自动削减多维或多级模型的集成维数。

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flexMIRT能够处置大型数据集

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一种新设计的内存分配规划有助于flexMIRT有效地处置数千个项目和数百万受访者。适合必要物品反映理论模型的任一尺寸分析。

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支持的版本

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不变版本：版本 3.6.5

候选版本：不合用

已弃用版本：版本 3.5x

所有支持的版本：版本 3.0+

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把稳：

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目前

，目前不提供任一法式的本机Mac版本。但是

，若是您有双启动设置或 Windows 仿照器

，只有您的硬件由于已知的兼容性问题而不使用 Apple 专有的基于 ARM 的芯片

，任一法式都应该正常运行。请把稳

，只能提供对使用该软件的支持

，无法提供有关设置 Mac 以允许法式可用的领导。Parallels Desktop 是常用的仿照器。VirtualBox是Oracle的免费代替品

，但与Parallels相比

，它可能有点慢。

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【英文介绍】

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A multilevel, multidimensional, and multiple group item response theory (IRT) software package for item analysis and test scoring. flexMIRT fits a variety of unidimensional and multidimensional item response theory models (also known as item factor analysis models) as well as diagnostic classification models to single-level and multilevel data in any number of groups.

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flexMIRT is easy to use

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Windows-based flexMIRT has a graphical user interface (GUI) and is available in 64-bit version. It has an intuitive syntax and can be run seamlessly in a command line mode for high volume production. The user’s manual demonstrates a variety of analyses with annotated input and output.

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flexMIRT is flexible

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Our IRT software can fit a wide variety of item-level models including 1PL, 2PL, 3PL, Graded Response Model, Generalized Partial Credit Model, and Diagnostic Classification Models. It is able to accommodate multiple dimensions, dependence within the data (i.e., multilevel), crossed random effects, covariates, and departures from normality in the latent trait(s).

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flexMIRT is fast

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As modern CPU architecture trends toward multi-core design, flexMIRT uses parallel processing to further speed up computations by spreading the load automatically to the multiple available cores or processing units. When possible, flexMIRT uses dimension reduction to automatically reduce the number of dimensions of integration for multidimensional or multilevel models.

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flexMIRT can handle large datasets

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A newly-designed memory allocation scheme helps flexMIRT efficiently handle thousands of items and millions of respondents. Great for any size analysis where item response theory models are needed.

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Supported Versions-flexMIRT

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Stable release: Version 3.6.5

Release candidate: n/a

Deprecated versions: Versions 3.5x

All supported versions: Versions 3.0+

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Note:

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Currently we offer no native Mac version of any of our programs currently available. However, if you have a dual-boot set-up or a Windows emulator, any of our programs should run without issues as long as your hardware is not using Apple’s proprietary ARM-based chips because of known compatibility issues. Note that we can only provide support for using the software and are unable to provide guidance on setting up a Mac to allow for a program to be usable. Parallels Desktop is the most frequently used of the emulators. VirtualBox is a free alternative from Oracle, but it can be very slow compared to Parallels.

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