Table 3. Advantages and disadvantages of unannounced evaluations.

	Advantages	Disadvantages
Date NOT announced	More realistic example of everyday performance	Fear and stress of regular surprise evaluations Difficult to learn under stress Wasteful if key providers are absent Providers may experience being under suspicion Intrinsic motivation may decrease
Date announced	Providers ready for evaluation stress Likely a better uptake of formative content Provider learn by preparing for evaluation	”Over-preparation” at expense of non-evaluated services Larger potential for biased evaluations