Gain sharing decreases work motivation because of pay-for-performance incentives and a greater sense of personal responsibility for making performance contributions to the organization.

This statement is incorrect. Gain sharing is designed to increase work motivation by providing employees with a tangible reward for improving the organization's performance. It also fosters a sense of teamwork and cooperation among employees who are working towards a common goal. While pay-for-performance incentives may increase personal responsibility, it does not necessarily lead to a decrease in work motivation.