Which of the following is a non-financial method used to motivate staff?

Praise is a non-financial method used to motivate staff because it focuses on recognizing and appreciating an employee's contributions and achievements without involving monetary compensation. This approach fosters a positive work environment, enhances employee morale, and can lead to increased job satisfaction. When employees receive praise, they often feel valued and respected, which can encourage greater productivity and loyalty to the organization.

In contrast, salary increases, bonuses, and retirement plans are all financial incentives. While these can effectively motivate employees by providing tangible rewards, they fall under the category of financial methods. Employing non-financial motivation techniques, such as praise, in conjunction with financial incentives can create a comprehensive approach to employee motivation.