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Multilingual Statistics

Pre/Post Testing of An Experimental and Control/Comparison Group

Please be aware that your data should:


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1. Contain two different groups of participants

2. Contain measuements for the same participants in the pre- and post-tests

*Your data will automatically be checked for normality and an appropriate test will be selected

*Click on the black ? symbol for help



Input Data Below or Click to Upload from CSV File:



Experiment Group
Pre-Test Data:

Experiment Group
Post-Test Data:

Control Group
Pre-Test Data:

Control Group
Post-Test Data:

For Methods Section:

The description of your test will be printed here:


For Results Section:

Your results will be printed here:





Please cite the book below if used for research purposes.

Spring, R. (2026). From concept to calculation: Classical statistics in language education research. TESL-EJ Publications.

Get the free e-book here or purchase a paperback or kindle version (all proceeds go to TESL-EJ to support non-profit TESOL research). Get explanations, sample data and explanatory Excel Sheets here.

Visit the research page of the creator, Ryan Spring, for examples of these tests used in practical research.