"[T]he behaviour domain to be tested must be systematically analysed to make certain that all major aspects are covered by the test items and in the correct proportions"; (Anastasi, p132).
In a C&G writing test, can anyone say what is the "behaviour domain to be tested"? Is an item which requires the writing of an email testing the ability to write an email. And if it isn't, what IS it testing? Has anyone actually considered the question of behaviour domain?
Anastasi, A. (1988) Psychological Testing (6th Edition) New York. Macmillan.