Evaluation Glossary

First-impression Effect

A rater effect in which an assessor or an evaluator tends to base judgments and evaluations on early opinions rather than on a complete picture and tends to distort subsequent information to fit the initial opinion.


Patricia Wheeler, Geneva D. Haertel, and Michael Scriven. (1992). Teacher Evaluation Glossary, Kalamazoo, MI: The Evaluation Center, Western Michigan University.

Related Terms

Halo Effect