Definition : Backwash (also called washback) is the effect that knowledge of the contents of a test may have on the course which precedes it. It may be positive or negative.

What is meant by washback?

Definition : Backwash (also called washback) is the effect that knowledge of the contents of a test may have on the course which precedes it. It may be positive or negative.

What is washback in teaching?

Washback refers to the influence of language testing on teaching and learning. This volume, at the important intersection of language testing and teaching practices, presents theoretical, methodological, and practical guidance for current and future washback studies.