John Galt Solutions
Request Demo | Purchase | Contact |
Call Us 1-312-701-9026
John Galt University

John Galt University

Forecast Xpert Training

Methods & Statistics

White Papers

Glossary Terms

M3 Results

Education Partners

Business Forecasting Book

Resource Center






Sum Squared Error (SSE) is an accuracy measure where the errors are squared, then added. It is used to determine the accuracy of the forecasting model when the data points are similar in magnitude. The lower the SSE the more accurate the forecast. Understanding this accuracy statistic will help you choose which forecasting model best fits your data.

Learn About John Galt

Free Stuff

Quick Links

In the News