# esci (Estimation Statistics with Confidence Intervals)

• Pronounced ‘ESS-key’
• Free, open-source, no textbook purchase required

esci has two sides

• Simulations and explorations (including “Dance of the Means”) are provided online, working on any modern browser and most devices.  These were developed by Gordon Moore.  Access these learning tools here.
• Data analysis and visualization – Now implemented as an R package and a jamovi module.

Release History

esci has gone through a number of different implementations and releases.

• esci 1.01, released August 2023
• Developed for the 2nd edition of Introduction to the New Statistics
• All the simulations moved online through work by Gordon Moore.  Access these learning tools here.
• For data analysis:
• An R package
• A jamovi module
• esci 0.9.4, released in 2021
• This was a alpha version of the jamovi packaged.  Although it has now been completely rewritten, the alpha release is still available here.
• ESCI in Excel for Introduction to the New Statistics (2016-2020) – this version was released to accompany the first edition of Introduction to the New Statistics.  You can download this updated version for free from the book publisher’s website here. Or you can use these direct downloads:
• ESCI for Chapters 3-8  (descriptive stats, normal distribution, t distribution,  dance of the means, two independent group designs, simple paired designs, cohen’s d)
• ESCI for Chapters 10-16 (planning for precision, correlation, regression, comparing correlations, comparing proportions, complex designs with one IV, 2×2 between-subjects design, robust methods)
• ESCI for meta-analysis
• ESCI in Excel for Understanding the New Statistics (2012) – designed to accompany this earlier book that explains the estimation approach to those trained in statistics using the null-hypothesis significance testing approach.  You can download these earlier versions here
• Earlier versions of ESCI in Excel (2001 – 2010) – each earlier version was released with a specific published article explaining components of the estimation approach.  The newest version is recommended, but you can download these earlier versions here

To download and use the older Excel-Based versions of ESCI

• Choose one of the three versions below
• Save the ESCI .zip file to your hard disk (N.B. Don’t open the .zip file straight from this webpage)
• Open the saved .zip file, extract (unzip) all files and save the contents in a single folder on your hard drive
• If you encounter a problem, it may be a known Microsoft problem with Windows XP and .zip files: You need to have the ‘Confirm open after download’ option selected. See Microsoft Support Article ID 308090
• Open an ESCI module in Excel.
• Make sure macros are enabled.
• Adjust zoom factor if necessary, so the display fits your screen.
• Enjoy the mean heap, dance of the p values, and other neat simulations.