IRTPRO 4.20 項目反應測驗軟體
- IRTPRO 4.20 項目反應測驗軟體
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類別統計分析軟體
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介紹多年的SSI已經有了廣泛分佈套房四IRT （項目反應理論）稱為BILOG -MG ， MULTILOG ， Parscale和Testfact方案。然而，隨著成長和成功也帶來新的用戶和新的期望。儘管取得了成功，這些IRT程序是遠遠不夠完善以今天的軟件的標準來衡量。此外，它們共享了大量的相似性和重疊的功能的。因此，可以明顯看出一個國家的最先進的單，軟件產品必須開發，以取代這四個程序。
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價格
IRTPRO 項目反應測驗軟體
IRTPRO supports both model-based and data-based graphical displays. Model-based graphs, currently available for unidimensional IRT models only, are trace lines, information curves, combined trace lines-information curves, total information, and test characteristic curves.
IRTPRO imports data from a variety of statistical software packages as well as importing data from fixed format data (.fixed), comma-separated (.csv), tab-delimited (usually .txt), and Excel (.xls) files. Whatever the original format, the imported data are saved to an IRTPRO data file with extension .ssig that is displayed visually as a spreadsheet, similar in appearance to an Excel spreadsheet.
Unidimensional and multidimensional (confirmatory or exploratory) versions of the following widely used response functions: Two-parameter logistic (2PL) [includes the one-parameter logistic (1PL) with equality constraints], Three-parameter logistic (3PL), Graded, Generalized Partial Credit, and Nominal.
IRTPRO 項目反應測驗軟體
為了努力滿足廣大用戶群體的不斷增長的需求， SSI公司開發一個新的軟件產品，名為IRTPRO ，這是對當前技術的最前沿。該方案已被廣泛的測試在Microsoft Windows平台的Windows7 ， Vista和XP操作系統上。該IRTPRO數字引擎的重要路段已同時並行在多個內核上運行。
IRTPRO同時支持基於模型和基於數據的圖形顯示。基於模型的圖形，目前僅適用於單維IRT模型，是軌跡線，信息的曲線，結合軌跡線信息的曲線，全面的信息，以及測試特性曲線。
從各種統計軟件包IRTPRO進口數據以及從固定格式數據導入數據（固定的） ，逗號分隔（ CSV ） ，製表符分隔（通常， TXT ） ，和Excel （ xls）的文件。無論原來的格式，導入的數據保存到擴展名為一個IRTPRO數據文件。 SSIG是視覺上顯示為一個表格，在外觀到Excel電子表格相似。
Latent GOLD® 5.1 潛類回歸模型軟體
Latent GOLD® is a powerful latent class and finite mixture program with a very user-friendly point-and-click interface (GUI). Two add-on options are available to extend the basic version of the program.
Reliability & Maintenance Analyst 信賴度分析軟體
This is a versatile, powerful and user friendly reliability analysis software package. The software consists of two modules; a life data analysis module and a maintenance optimization module. Data is easily entered with the specialized data entry grid which allows up to 2 billion data points. This entry grid is easily linked to a Microsoft?Access™ database. All graphics can be customized with easy to use dialog tabs. When your analysis is complete, use the report writer to create custom output in a format compatible with Microsoft Word, Wordperfect, and all other major word-processors.
