ISEB-PM1 · Question #256
What does a CPI value greater than 1.0 indicate?
The correct answer is B. Cost under the estimated value. CPI (Cost Performance Index) = Earned Value (EV) ÷ Actual Cost (AC). When CPI > 1.0, EV exceeds AC - meaning you earned more value than you spent, so you are under budget (B is correct). Option A describes CPI = 1.0 exactly, where earned value equals actual cost. Option C is a…
Question
What does a CPI value greater than 1.0 indicate?
Options
- ACost right at the estimated value
- BCost under the estimated value
- CCost right at the actual value
- DCost over the estimated value
How the community answered
(27 responses)- A11% (3)
- B85% (23)
- D4% (1)
Explanation
CPI (Cost Performance Index) = Earned Value (EV) ÷ Actual Cost (AC). When CPI > 1.0, EV exceeds AC - meaning you earned more value than you spent, so you are under budget (B is correct). Option A describes CPI = 1.0 exactly, where earned value equals actual cost. Option C is a distractor that conflates "actual value" with the formula's components - CPI doesn't compare actuals to actuals. Option D (over budget) is the opposite of B and describes CPI < 1.0, where you spent more than the value earned.
Memory tip: Think of CPI like a store coupon - a value greater than 1 means you got more than you paid for (a deal/under budget); less than 1 means you overpaid (over budget).
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