Final answer:
Employees' previous experience with a union is a strong predictor of their attitudes toward unions and their decision to join one.
Step-by-step explanation:
The statement is true. Employees' previous experience with a union is a strong predictor of their attitudes toward unions and their decision to join one. When employees have had a positive experience with a union, they are more likely to have positive attitudes towards unions and may be more inclined to join one. On the other hand, employees who have had negative experiences or have heard negative stories about unions may have negative attitudes and be less likely to join a union.