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ITALASSI 1.2
Explore regression models with interaction effectsITALASSI is a free statistical application for exploring regression models with an interaction between two independent variables. Users can enter equations or calculate models from raw data, then view the results in two-dimensional and three-dimensional graphs. It includes bivariate, additive multiple-regression and interaction models, helping researchers interpret changing regression slopes and instructors demonstrate interaction effects.
ITALASSI 1.2 details
| Author: | Kovach Computing Services |
| License: | Freeware |
| Price: | FREE |
| Released: | Oct 15, 2010 |
| File size: | 645 kB |
| Downloads: | 452 |
| Keywords: | ITALASSI, statistical analysis tool, interaction effect analyzer, interpretation model, statistics teaching software, graph generator, regression slope calculator, x64 application, Windows 10 software, regression model, regression interaction software, regression, regression model graph, data interpretation software, graph, analyzer, Kovach Computing Services, multiple regression tool |
| Author URL: | http://www.kovcomp.co.uk |
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ITALASSI for Windows 10 - Full description
ITALASSI is a free statistical application for researchers, students and instructors who need to examine regression models containing an interaction between two independent variables. Rather than treating a significant interaction as making a model unusable, the program helps users explore how the relationship between a predictor and an outcome changes at different values of another predictor. It can also support lessons on interaction and applied multiple regression.
Users can enter regression equations directly or calculate models from raw data. The available models include two bivariate regressions, a multiple additive regression and a multivariate regression with an interaction term. This makes it possible to compare simpler relationships with a model that includes an interaction, using equations or data as the starting point. The program focuses on models with two independent variables.
ITALASSI displays models with two-dimensional and three-dimensional graphs. These visualizations provide another way to inspect how the predictors relate to the dependent variable and how their combined effect changes across values. One common way to interpret an interaction is to calculate the regression slope for one independent variable at several values of the other. The application is intended to make this investigation less cumbersome, particularly when checking more than one possible interaction.
The program is suited to examining and explaining interactions in research settings, and to demonstrating them in advanced statistics courses. Researchers can use the graphs alongside model equations to develop an intuitive interpretation; instructors can use the different model forms to illustrate the distinction between additive effects and an interaction. Its role is focused on regression-model interpretation rather than general-purpose statistical analysis.
ITALASSI is freeware from Kovach Computing Services. The supplied operating-system information includes Windows 10, as well as earlier Windows releases; Windows 11 compatibility is not stated. The download is a small application, and its core workflow is to enter equations or provide raw data, then inspect the resulting models and graphs.