Final answer:
The statement regarding effective followers needing external mechanisms for accountability is false. Effective followers have self-responsibility and self-regulation abilities that make external accountability mechanisms unnecessary.
Step-by-step explanation:
The statement 'Effective followers require external mechanisms for accountability' is false. Effective followers maintain a level of self-responsibility and accountability within themselves, which is a part of their individual integrity and commitment to their role. While external mechanisms can support accountability, they are not a requirement for an individual to be an effective follower. In fact, the best followers often have strong intrinsic motivation and the ability to regulate their own behavior without needing external forces to hold them accountable.