How can companies effectively measure the long-term impact of their efforts to fulfill employees' psychological needs, and what strategies can they implement to continuously improve and sustain positive outcomes in the workplace?

Companies can measure the long-term impact of their efforts to fulfill employees' psychological needs by conducting regular surveys, analyzing turnover rates, and tracking productivity and engagement levels over time. To continuously improve and sustain positive outcomes in the workplace, companies can implement strategies such as offering professional development opportunities, promoting work-life balance, creating a positive company culture, and providing regular feedback and recognition to employees. By consistently monitoring and adjusting their approaches based on feedback and data, companies can ensure that they are meeting employees' psychological needs and fostering a positive work environment.