Final answer:
To measure the effect of an HR initiative on productivity, the most suitable choice is Return on Investment (ROI), which provides a financial view of the initiative’s success by comparing the financial gains to the costs incurred from the change.
Step-by-step explanation:
To gauge the effectiveness of the HR change initiative designed to increase productivity, the most appropriate measure would likely be Return on Investment (ROI). ROI will provide a quantifiable measure of the initiative's financial returns relative to its costs. By comparing productivity levels, cost savings, and any income generation both before and after the initiative’s implementation, organizations can establish the initiative's impact on performance and profitability.
Training ROI, while related, is more specifically concerned with the benefits derived from training programs themselves, whereas Human Capital Value Added would look at the value employees bring minus the cost of employing them.
Success ratio might not be as relevant since it is often used to measure the fraction of successful transactions or operations within a system rather than the financial impact of an initiative. What needs to be monitored are changes among process efficiency, quality of outputs, employee performance and how these affect the overall financial health of the operations area since the changes have been applied.