And are both different types of transactional leadership. follower maturity; power individualized attention; charisma contingent reward; management by exception intellectual stimulation; inspiration

Transactional leaderhip is characterized  with using rewards and punishments to gain compliance from the followers.
Contingent reward and management by exception   are both different types of transactional leadership.
Contingent reward provides rewards for effort and recognizes good performance. In management by exception (MBE) on the other hand  the leader takes corrective action to prevent mistakes. 

Sometimes but itt depends, their is a lot if drugs on campus too so you really can't just say that