在行动研究中，研究者承担的角色是（）。

158 The computation for Cost Performance Index is:

A. BCWP/ACWP

B. BCWP-ACWP

C. BCWP-BCWS

D. ACWP/BCWP

E. ACWP-BCWS

The Cost Performance Index (CPI) measures

A.total costs

B.performance over a period of time

C.costs at a point of time

D.variable costs

E.All of the above.

110 The Cost Performance Index (CPI) measures

A. total costs

B. performance over a period of time

C. costs at a point of time

D. variable costs

E. All of the above

The Cost Performance Index (CPI) measures:

A.cost of work performed vs planned costs.

B.work performed vs cost of work performed.

C.work performed vs planned work.

D.direct costs vs indirect costs.

E.floating costs vs. sunk costs.

A．Schedule variance

B．Cost variance

C．The schedule performance index

D．The cost performance index

28 The Cost Performance Index (CPI) measures

A. total costs

B. performance over a period of time

C. costs at a point of time

D. variable costs

E. All of the above

132 Using the situation stated in the Special window, what is the cost performance index for Case #9？

A. 1.10

B. 1.91

C. 0.83

D. 1.20

E. None of the above

Using the situation stated in the Special window, the cost performance index (CPI) for WBS Element R is:

A . 0.875

B . 1.14

C . 0.952

D . 0.833

E . 1.2

14 Using the situation stated in the Special window, what is the cost performance index for Case #9？ A. 1.10

B. 1.91

C. 0.83

D. 1.20

E. None of the above

185 Using the situation stated in the Special window, the cost performance index (CPI) for WBS Element R is:

A. 0.875

B. 1.14

C. 0.952

D. 0.833

E. 1.20