Final answer:
True, organization size is a contingency variable affecting managing style. It influences group dynamics, necessitating different leadership styles, and impacts conformity and individual behavior within a group.
Step-by-step explanation:
A contingency variable that can affect managing style is organization size. This is true. The size of an organization significantly influences its group dynamics, as different styles of leadership may be necessary to effectively direct a smaller team compared to a larger one.
Leadership styles may also influence how conformity within the group is handled, with certain styles being more conducive to promoting individuality or, conversely, encouraging conformity. The structure and dynamics within the organization can affect individual behavior and overall productivity. Understanding these factors can help in implementing the most effective management strategies suited to the organization's size.