AcaStat Statistical Software — Designed by a statistics professor for students.

AcaStat is easy to use and includes a help module that explains how to run the statistical procedures and, for most analyses, annotated output is available to help student interpretation. A random sampling procedure can be used to test the central limit theorem. Example data files are available in a pull-down menu.

For purchased versions, AcaStat provides summary statistics modules that help students confirm hand calculations and experience the impact on statistical significance when changing effect size, variation, and sample size. There are graphic displays for confidence intervals and significance p-values.

View Specifications

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Student Affordability

Students and faculty may purchase AcaStat or StatCalc at the academic discount price (AcaStat $14.99; StatCalc $7.50). There are no verification requirements to select the academic discount. We use the honor system for students and faculty who use the academic discount.

Instructors who require AcaStat or StatCalc for a course, can be assured all students who have access to a compatible computer operating system can obtain a licensed copy, even if they do not have the means to purchase.
A student or their instructor can request complimentary versions of AcaStat or StatCalc by e-mailing support@acastat.com. In your request, please provide the course title, instructor, and institution.

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Free Instructional Aids

AcaStat Demo
The demo version of AcaStat allows the analysis of up to 100 observations without purchase. The current demo version does not expire, so students can use it indefinitely. The major limitation of the demo is that the summary statistics module is disabled.

Applied Statistics iBook
The free Applied Statistics iBook is an updated and expanded version of StatBook.  It provides a review of hypothesis testing and guides the interpretation of output generated by statistical software (also available in pdf).

Student Workbook
Provides instruction for using AcaStat or SPSS. Version 4 contains the solutions in the Appendix.

Stat Guide
The annotated Stat Guide provides basic interpretations of key statistics commonly reported in statistical software tables.

Education Site Licenses
Register free lab license for full version of AcaStat.

Practice Data Files
Download data files for use with AcaStat.