Which practice prevents one position from being studied under two or more capability-based manpower studies?

The correct choice is the practice that involves ensuring that a specific position or job role is not examined in multiple capability-based manpower studies simultaneously. This practice is designed to maintain clarity and consistency in the data collected and analyzed regarding workforce requirements and capabilities.

Baseline tagging plays a crucial role in this process. By tagging baseline data associated with each position, any overlap or confusion regarding which study a position belongs to is eliminated. This ensures that each manpower study can inform decisions and strategies based on a clear and singular context for each position, preventing the dilution of data integrity and allowing more precise analysis of workforce needs.

In contrast, practices such as position linking or cross-study management do not specifically prevent a position from being studied multiple times; instead, they focus on how positions may relate to one another or how studies may be coordinated. While a single study protocol can guide the methodology for conducting a study, it may not directly address the issue of overlapping studies concerning specific positions. Therefore, baseline tagging is the most effective method to prevent such overlaps and maintain the clarity required for effective manpower analysis.