What is the PEG automated scoring algorithm?

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An award-winning automated scoring algorithm.

Project Essay Grade® (PEG®) software is an automated essay scoring solution based on more than 40 years of research by Dr. Ellis Batten Page, whose pioneering work in the field of computational linguistics has distinguished him as the leader of computer-based essay scoring. Using advanced, proven statistical techniques, PEG analyzes written prose, calculates measures that reflect the intrinsic characteristics of writing (fluency, diction, grammar, construction, etc.), and models the decisions of professional readers to produce scores that deliver unparalleled accuracy and reliability. PEG’s scoring results have been validated in more independent studies than all other essay scoring solutions combined.

In a national study, PEG was found to be the most accurate of the top three leading automated scoring algorithms. Students who used PEG feedback and traditional writing instruction showed a 22% improvement in writing over those who did not.

Improving Writing Skills

PEG and ERB Writing Practice

ERB’s new and improved writing program, Writing Practice, utilizes the PEG scoring algorithm to provide students with instant feedback so that they can continue to practice and strengthen their writing skills.

ERB Writing Practice is an online program for students in grades 3-12 that helps students improve their writing skills through practice, feedback, and guided support. It is backed by the PEG scoring algorithm, the industry’s most accurate automated scoring algorithm, and contains a robust library of prompts and lessons.

This program is designed to help educators save valuable time. With more than 500 essay prompts to choose from—and the PEG scoring algorithm automating the work to provide student feedback—educators can focus on guiding students’ individual development paths.


Contact your Member Services Director or Submit a request form if you have questions about ERB Writing Practice.

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