Week 2 discusses the concepts of practicality, reliability, validity, authenticity, and washback in language assessment.
It provides definitions and factors to consider for reliability, including learner-related reliability, rater reliability, test administration reliability, and test reliability. Factors like temporary illness and fatigue can influence reliability.
The document also discusses different types of validity, including content-related evidence, criterion-related evidence, construct-related evidence, consequential validity, and face validity. It provides examples to illustrate criterion-related and concurrent validity.
Washback refers to how testing influences teaching and learning, in terms of how students prepare for tests.