According to the a-o-r model, leadership development is enhanced when the consequence and significance of an action is considered.

That statement is True.
The three main factors of leadership development according to the A-O-R model are: Actions, Observation, and Reflection.
When the result of the actions is significant, the leader could obtain a lot of knowledge during the observation period and could easily distinguish the causes of the significance. This will help the leaders in making future decisions.

The answer would be giving evaluation .