The correct answer is: B. They are difficult to validate.
Written tests are difficult to validate because they
are often subjective and can be easily influenced by factors such as the test-taker’s mood, the difficulty of the questions, and the amount of time allowed to complete the test. Additionally, written tests can be difficult to score accurately, which can lead to unfair results.Option A is incorrect because written tests can be relatively easy to construct if the test-maker is careful to follow proper test-construction procedures.
Option C is incorrect because written tests can be relatively inexpensive to administer, especially if they are administered online.
Option D is incorrect because written tests can provide a great deal of information about a test-taker’s knowledge and skills. However, this information can be difficult to interpret if the test is not properly designed and administered.