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Welcome to the website of the R Analyzer for Large-Scale Assessments

The R Analyzer for Large-Scale Assessments (RALSA) is an R package for preparation and analysis of data from large-scale assessments and surveys which use complex sampling and assessment design. RALSA is a free of charge and open source software licensed under GPL v2.0 and is cross-platform — it works on any system which can run a full installation of R. Currently, RALSA supports a number of studies with different design and a number of analysis types (see below). Both of these will increase in future.
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April 26, 2024

The R Analyzer for Large-Scale Assessments (RALSA) has been updated to version 1.4.5. This update fixes a number of issues in the graphing capabilities of the descriptive functions and the GUI. In addition to these fixes…

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October 26, 2023

RALSA has been updated to version 1.3.7. This update focuses mainly on some critical issues that were introduced after the changes in the last versions of R and CRAN policies on package documentation.
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June 23, 2023

RALSA has been updated to version 1.3.5. This update focuses on adding more functionality to the existing graph capabilities, bug fixes and overall improvement of the workflow, and fixes existing features following updates of packages RALSA depends on. Saving syntaxes from the GUI now appends the new synatx to existing files instead of overwriting them. Support for PIRLS 2021 is now added. Here is the full list of changes…
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July 8, 2022

RALSA has been updated to version 1.3.0. This update focuses mainly on bugfixes and improvements in the GUI and its workflow, but also introduces some new features.

New functionality

  • The lsa.crosstabs function…

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May 4, 2022

RALSA has been updated to version 1.2.0. The main accent in this update is introducing graphical representation of the statistics for the percentages and averages, percentiles, and benchmarks. These…
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March 30, 2022

RALSA has been updated to version 1.1.5. The update brings new functionality for an existing analysis type, new data preparation function, improvements and bug fixes. Here is what’s new in this update:

New functionality

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March 25, 2022

The International Educational Research and Evaluation Institute (https://www.ineri.org) is organizing a three-day online training on using the R Analyzer for Large-Scale Assessments (RALSA) R package to analyze large-scale assessments’ and surveys’ data. The three-day training will take place from April 25 till April 27, 2022. The training includes both lectures and hands-on practice sessions.

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February 4, 2022

RALSA was updated to version 1.1.0. The update brings one more analysis type, a new feature for two of the existing analysis types, support for a new study, support for an additional datasets type within a supported study, many bugfixes, and a lot of improvements. Here is what’s new…

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