Correctly measuring the productivity of service workers is complex. Consider, for example, postal workers: they are often said to be more productive if more letters are delivered per postal worker. But is this really true? What if more letters are lost or delayed per worker at the same time that more are delivered? The objection implied above to the productivity measure described is based on doubts about the truth of which of the following statements? (A) Postal workers are representative of service workers in general. (B) The delivery of letters is the primary activity of the postal service. (C) Productivity should be ascribed to categories of workers, not to individuals. (D) The quality of services rendered can appropriately be ignored in computing productivity. (E) The number of letters delivered is relevant to measuring the productivity of postal workers.

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Correctly measuring the productivity of service workers is complex.

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guddo

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07 Jun 2026, 15:15

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"..based on doubts about the truth of the following.."

so the objection is based on X, where X = doubts about truth of Y --> Does truth of Y basically not mean "validity of Y"? If so, wouldn't that mean that the doubt is on whether the following is valid or not? Isn't the stem asking "objection...based on validity of..."?

But the author does not question or doubt the validity or importance of quality of services, in fact he/she does the opposite - he/she uses this factor to cast doubt on the reliability of the metric of "number of letters delivered per worker".

But choosing option D means that the author's objection comes from the author questioning the validity of quality of services, isn't it? Option B on the other hand implies that the author casts doubt on the validity that delivery is the PRIMARY activity (since he/she believes reliability of delivery is as much part of the activity as the delivery itself).

The wording means: the objection is based on doubting whether statement D is true.

Statement D says: quality can be ignored when measuring productivity.

The author doubts exactly that. If more letters are delivered but more letters are also lost or delayed, then quality cannot be ignored. So D is correct.

B is not the issue. The author is not denying that delivering letters is the primary activity of postal workers. The author is saying that counting delivered letters alone is not enough, because bad delivery still matters.

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