How does IEA work?
IEA uses the Knowledge Analysis Technologies™ (KAT) engine, a patented technology based on over twenty years of research and development. The KAT engine is based on Latent Semantic Analysis, a computational technique that provides a sophisticated analysis of text. It assesses the content of an essay by comparing it against a set of essays previously scored by expert human readers. IEA assigns a score to each essay based in part on the similarity of the content of the essay to the training set essays.