Final answer:
The participative leadership style can have the disadvantage of slow decision-making processes and the formation of opposing factions within a group.
Step-by-step explanation:
One disadvantage of the participative leadership style is that it can lead to slow decision-making processes due to the need for building consensus among group members. Consensus building can be time-consuming and may delay the implementation of necessary actions or solutions. Additionally, the participative leadership style can sometimes result in the formation of opposing factions within the group, as members pick sides and become entrenched in their positions instead of working towards a solution.