Nursing Professional Development Certification (NPD-BC) Practice Exam

If a project's schedule performance index is 93% and the cost performance index is 105%, what does this indicate?

1. a. ahead of schedule and over budget

2. b. ahead of schedule and under budget

3. c. behind schedule and over budget

4. d. behind schedule and under budget

The correct answer is: d. behind schedule and under budget

The scenario presented, where the project's schedule performance index (SPI) is at 93% and the cost performance index (CPI) is at 105%, provides a crucial understanding of how the project is performing in terms of both time and cost. A schedule performance index below 100%, such as the SPI of 93%, indicates that the project is behind schedule, as it reflects that the amount of work completed is less than what was planned for that time frame. Conversely, a CPI above 100%, like the CPI of 105%, signifies that the project is performing well on cost, meaning that the costs incurred are less than what was budgeted for the completed work. Thus, having a project with an SPI of 93% suggests it is indeed falling behind schedule, and a CPI of 105% conveys that it is also under budget. Therefore, the interpretation that the project is behind schedule and under budget aligns with the values provided, reflecting efficiency in spending despite the delays in schedule.