The Most Common Mistake I See in Assistant Principal Interviews

I have sat on a lot of assistant principal interview panels over the years, and one pattern shows up again and again.

Some of the strongest candidates on paper don’t always perform the strongest in the interview.

They’re experienced.
Respected.
Well-prepared.

And yet, something doesn’t quite land.

The most common reason isn’t a lack of ability. It’s a misalignment in how candidates frame their thinking.

The Mistake Isn’t What You Think

Most candidates assume the mistake is:

  • Not saying enough
  • Missing a key example
  • Giving an answer that’s too short

In reality, the most common mistake strong assistant principal candidates make is answering interview questions from a teacher lens instead of an administrator lens.

They describe what they did—but not how they decided.

What This Looks Like in Interviews

Here’s how this mistake often shows up:

  • Answers focus heavily on classroom-level actions
  • Stories center on individual success rather than systems
  • Responses explain steps taken but not judgment used
  • Candidates talk about outcomes without discussing tradeoffs

None of this is wrong. But it leaves principals wondering something important:

Can this person think beyond their own role?

Why This Happens to Strong Candidates

This mistake is especially common among strong teachers because teaching rewards:

  • Precision
  • Preparation
  • Control
  • Immediate solutions

Leadership work rarely does. Assistant principals operate in spaces where:

  • Information is incomplete
  • Priorities conflict
  • Decisions affect adults as much as students
  • There is no perfect answer

When candidates don’t acknowledge that complexity, their answers can sound polished—but shallow.

What Principals Are Actually Listening For

When principals ask interview questions, they aren’t just evaluating what happened.

They’re listening for:

  • How you think through uncertainty
  • Whether you consider multiple perspectives
  • How you balance competing needs
  • What you do when there is no clear “right” answer

Strong candidates don’t avoid complexity. They name it—and explain how they navigated it.

How to Correct This Mistake

If you’re preparing for an assistant principal interview, shift your preparation slightly.

Instead of only asking:

What did I do?

Also ask:

  • Why did I choose that approach?
  • What options did I consider?
  • What constraints did I have to work within?
  • What did I learn from the outcome?

That shift alone changes how your answers land.

A Final Thought

Strong assistant principal candidates rarely fail because they aren’t capable. They struggle when they don’t yet sound like administrators, even though they may be ready to become one. Interviews aren’t about proving you’ve arrived. They’re about demonstrating that you’re thinking at the next level.


If You’re Preparing for AP Interviews

If you want a clear, structured way to practice framing your experiences through an administrative lens and avoid this common mistake, I’ve created a resource that walks through this process step by step.

You can learn more about the Assistant Principal Interview Bootcamp here.


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