This document discusses principles for designing effective tests, including practicality, reliability, validity, authenticity, and washback. Tests should be practical to administer, reliable in scoring consistently, valid in measuring the intended ability or knowledge, authentic in mimicking real-world tasks, and provide washback or feedback to students on their competence. Validity is the most complex criterion, and there are three types: content, face, and construct validity.

1. TESTING

2. Method of
measuring a
person´s ability or
knowledge.

3. Principles for design a test:
*practicality
*reliability
*validity
*authenticity
*washback

4. Practicality:
a practical test is not
expensive, have a time
constraints, ease of
administration.

5. Reliability:
a reliable test is consistent
and dependable.
Reliability refers to yhe
consistency of scoring by
two or more scorers.

6. Validity:
the most complex
criterion of a good
test is validity.
The test may be said
to have criterion
validity.

7. There are thre types of
validation :
-content validity
-face validity
- construct validity

8. Authenticity:
the characteristics
of a given
language test task.

9. Washback:
washback is when
students receive
information
(feedback) about
their competence,
based on their
performance.