Most people who care about fairness find some Minimization in themselves when they look honestly. That is not a confession. It usually reflects a sincere commitment to treating people well, paired with a gap in seeing how culture shapes one's own habits. The continuum describes one form of Minimization as limited cultural self-understanding: when your own ways of communicating, deciding and showing respect feel like plain common sense, it is hard to see them as cultural at all. The first move, then, is not learning more about other groups. It is learning to see your own patterns as patterns.
Some useful questions to sit with privately. When I say someone is "unprofessional," what exact behavior am I describing, and where did I learn that standard? When a meeting goes well, whose participation style made it feel that way? When I say "I don't see color" or "I treat everyone the same," what am I hoping to communicate, and what might the other person hear? When a person served does not follow the plan, is my first explanation about them, or about the fit between the plan and their life? These questions are not a test, and there are no scores.
It helps to be honest about why Minimization feels good. It lowers conflict, it feels generous, and it fits public service values like consistency and equal treatment. Some staff, especially those from non-dominant groups, may also have learned to emphasize commonality because it made workplaces easier to navigate. That is a reasonable strategy and nobody else gets to decide it is wrong for you. If this describes you, the question is simply whether the strategy is still serving you and the people you work with, or whether it costs you something to keep your own perspective quiet.
A caution: reflection is not self-assessment on the inventory. Reading about an orientation and thinking "that sounds like me" is not an Intercultural Development Inventory result, and it should not be written into a development plan, performance review or team discussion as if it were. The inventory is administered only by Qualified Administrators and includes a debrief for good reason. What you can do on your own is notice specific habits, test them, and ask for feedback on specific behavior. That is the practical work, and it does not require anyone to name a stage.