Final answer:
Social events are confirmed to be good incentives according to the Community Tool Box, while material, solidary, and purposive incentives may also be effective, debunking the other options presented in the question.
Step-by-step explanation:
According to the Community Tool Box, the true statement is that social events, such as staff outings and planned celebrations, can be good incentives. Options stating that benefits are usually inappropriate, money is the only effective incentive, and that nobody wants plaques, mugs, or certificates are not true.
Different types of incentives, including solidary incentives, purposive incentives, and material incentives, appeal to different concerns and motivations and can all be appropriate given the right circumstances and context.It is also not true that nobody wants plaques, certificates, and mugs as incentives. While these may not be the most desirable incentives for everyone, there are individuals who appreciate and value recognition and tangible rewards for their achievements or contributions. Overall, the effectiveness of incentives depends on factors such as individual preferences, the specific circumstances, and the desired outcome.