The principal of a school wants to measure performance by having trained observers watch teachers in their classes for at least a week and check off what behaviors each teacher is engaging in that are effective. The superintendent points out that this method of measuring performance is extremely time-consuming and expensive. In this case, the performance measure lacks:

Question

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The superintendent's concern about the time-consuming and expensive nature of the method indicates that it lacks practicality, making it difficult to implement on a larger scale.

The Principal of a School Wants to Measure Performance by Having