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How to Conduct Behavioral Interview Questions

9月3日
読了時間: 5分

更新日:9月10日

How to Conduct a Decision Structure Interviewと書かれている画像

How to Conduct Behavioral Interview Questions: The 3 Questions

AI now helps almost anyone create a polished resume, a refined self-introduction, and convincing interview answers. STAR stories can be structured and improved in minutes. Candidates can present themselves more effectively than ever before.

Behavioral interview questions are designed to reveal how candidates actually make decisions and handle real-world challenges.


Yet hiring outcomes often tell a different story:

  • A candidate looks impressive on paper, but their decisions after joining do not align with expectations.

  • An interview goes extremely well, yet their priorities differ once they face real situations.

  • A hiring manager thinks, “This person seemed great,” only to discover a mismatch later.

This is not always a problem with the candidate’s ability.It is often a problem with what the interview is designed to reveal.

Traditional interviews focus on experience, achievements, communication skills, and the quality of answers. These do not necessarily show:

How does this person make decisions when faced with a real problem?

That is the true focus of asking behavioral interview questions.

Decision structure is not simply whether someone has “good judgment.” It consists of three layers:

  • What do they look at first? — Their starting point for judgment

  • What do they use as a basis for deciding? — Their decision criteria

  • What do they prioritize and what do they put aside? — Their trade-offs

Two candidates can face the same situation and make completely different decisions. Neither is necessarily right or wrong. The important question is: What led them to that decision?

As AI improves the surface of a candidate’s presentation, understanding the structure behind their decisions becomes increasingly important.


What We Actually Look At

We do not simply evaluate what a candidate has done.We look at: What kind of decision-maker is this person

Specifically:

  • When facing a problem, what do they look at first?

  • When several options are available, what do they use to choose?

  • When making a trade-off, what are they trying to protect, and what are they willing to put aside?

The purpose is not to label someone as a “good” or “bad” decision-maker.It is to understand: How does this person make decisions?


How to Conduct Behavioral Interview Questions: 3 Questions, 3 Steps, 30 Minutes

Conducting a behavioral interview can be built around three core questions and completed in approximately 30 minutes.

Question 1: Present a Real Problem

Begin with one concrete problem from the actual organization, department, or role.

Example:“This is a problem currently occurring in our organization. How would you approach improving it?”

The goal is not to find the perfect answer. Observe what the candidate notices first — people, customers, operational constraints, speed, risk, or business impact. Their first point of attention reveals an important part of their decision structure.

Question 2: Ask Them to Choose

Present three possible courses of action in a situation where expectations and reality have diverged. There should be no single correct answer.

Ask:

  • Which would you prioritize?

  • Why did you choose it?

  • What would you put aside in order to prioritize it?

This reveals what the candidate prioritizes, what they are trying to protect, what they are willing to sacrifice or postpone, and what criteria they use when priorities conflict. The trade-off is often more informative than the choice itself.

Question 3: Explore the Assumptions Behind the Decision

Finally ask:“What would you want to know first before making this decision?”

This helps reveal the candidate’s starting assumptions — what information they need before they are ready to decide. Across the three questions, you begin to map their decision structure.


What Makes a Decision Structure Interview Different from Traditional Interviews



Traditional Interview

General Judgment Assessment

Decision Structure Interview

What is evaluated?

Experience, achievements, past behavior

Whether the decision is correct or logical

Decision structure

Main focus

What the candidate has done

How well they solve a problem

What they notice, prioritize, and use as criteria

Typical question

“Tell me about a time when…”

“What would you do?”

“How would you decide, and why?”

Trade-offs

Often not examined

May focus on the final answer

Explicitly examined

Outcome

Hiring decision

Hiring decision

Hiring decision + insight for management and onboarding


Traditional interviews ask: “What has this person done?”

A judgment assessment may ask: “Can this person make a good decision?”

A Decision Structure Interview asks: “How does this person make decisions?”


What You Receive: A One-Page Decision Profile

After the interview, responses are analyzed and summarized in a one-page Decision Profile. It typically includes:

  1. Decision Starting Point — What the candidate tends to look at first

  2. Decision Criteria — What they use as the basis for choosing

  3. Decision Trade-offs — What they protect and what they are willing to postpone

  4. Approach to Real-World Constraints — How they handle budget, people, time, and feasibility

  5. Consistency of Decision Structure — Whether their assumptions and priorities remain relatively consistent

These elements do not judge the person as good or bad. They make the pattern of their decision-making visible.


The 3-Step Process to Implement It

  1. Define one real problem currently occurring in the organization or department.

  2. Create three trade-off choices with no obvious correct answer. Each option should involve a different priority and consequence.

  3. Conduct the 30-minute interview and summarize the responses into a Decision Profile.


Expand It with AI — We Encourage It

We intentionally designed this framework so that others can expand it.

Use AI to:

  • Generate questions tailored to your company’s real problems

  • Create industry- or role-specific trade-off options

  • Build multiple variations for different positions

The skeleton and observation principles are here.Please expand them for your own organization using AI.

One important note:While generating questions and options is relatively easy with AI, creating a high-quality diagnostic Decision Profile is not. Accurately reading a person’s decision structure from their answers requires careful observation and genuine human understanding. That part cannot be fully automated or lightly replicated.

Use the framework. Expand it. Adapt it.But keep the focus on truly seeing how the person decides.


Share Your Results in the Comments

If you try this approach, we would value hearing about it.

  • In what situation did you use it?

  • What did you notice in the candidate’s responses?

  • How did it differ from your usual interviews?

  • What worked well, and what was difficult?

Your practical experiences will help refine this way of looking at hiring.


The First Step

You do not need to redesign your entire hiring process.

Start with one real problem.Recall a hiring situation where something did not go as expected — a strong interview that later revealed different priorities, or interviewers who evaluated the same person very differently.

Ask:Where might the decision structure have differed?What could have been visible earlier?

Using a Decision Structure Interview helps organizations move beyond surface impressions and understand the structure behind a candidate’s decisions.

The purpose of the first exploration is not to adopt a new system.It is simply to test whether this way of looking at candidates is useful for your organization.


A Different Way to Look at Hiring

These decision interview structures are designed from a human-understanding perspective. They are not presented as the only correct answer.

When something is not working in hiring, it is worth looking beyond surface methods and returning to a deeper question:

What are we actually looking at when we evaluate a candidate’s judgment?Where might the structure of the decision be creating a mismatch?

The discomfort you feel in your hiring process.The differences you discover after someone joins.The decisions that somehow do not align with what you expected.

Perhaps the answer is not only on the surface.It may lie in the structure of how people decide.





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