Final answer:
Job enrichment is the best tactic to improve job satisfaction and motivate employees with more independence and self-evaluation opportunities, aligning with research showing higher satisfaction when employees feel autonomous and involved in decision-making.
Step-by-step explanation:
The best tactic a supervisor can use to improve job satisfaction and motivate employees by giving them more independence in their work and the opportunity to self-evaluate and evaluate is Job enrichment. Job enrichment is designed to enhance job satisfaction by providing employees with opportunities to have control over their work, engage in decision-making processes, enjoy freedom from constant surveillance, and feel integral to the outcome of their work. This aligns with research that indicates employees are more satisfied when they have a sense of autonomy and are included in decision-making processes that affect their work.