What capability allows a leader to improve soldier performance through incentives?

The capability that allows a leader to improve soldier performance through incentives is Reward Power. This form of power is centered around the ability to provide positive reinforcement or benefits as a means to motivate individuals or teams. In a military context, this could manifest as promotions, commendations, or additional responsibilities that recognize performance.

When a leader effectively utilizes Reward Power, they can create an environment that encourages soldiers to strive for excellence. Soldiers are more likely to engage in high-quality performance when they understand that favorable outcomes await them for their efforts. This capability is crucial in fostering a motivated and high-performing unit, as it aligns the goals of the soldiers with those of the organization, ultimately enhancing overall effectiveness.

Other options like Legal Power, Expert Power, and Coercive Power do not focus on incentives but rather on authority, knowledge, and pressure, respectively. Legal Power derives from a person's position within the hierarchy, Expert Power stems from a leader’s knowledge or skills, and Coercive Power involves the ability to impose penalties or consequences. These forms of power might influence behavior but do not effectively motivate individuals through positive incentives in the same way Reward Power does.