The Question Toolkit
Not all questions are equal. Choosing the right form at the right moment lets you steer a conversation without forcing its direction. This chapter gives you the grammar of questions: the main families, the funnel technique, and the forms to avoid.
Open or closed: the founding distinction
| Type | Form | Effect | When to use |
|---|---|---|---|
| Closed | Calls for yes/no or a short fact | Frames, checks, concludes | Confirm, decide, settle |
| Open | Starts with what, how, in what way | Explores, gets people talking | Discover, understand, open up |
The closed question ("Is the project behind schedule?") gets a quick answer but shuts down exploration. The open question ("What is slowing the project down?") invites elaboration. A classic mistake: asking a closed question when you wanted to understand. "Is everything okay?" gets a "yes" — and teaches you nothing.
Avoid opening your open questions with "why" when the stakes are emotional: "why did you do that?" is often heard as an accusation. Prefer "what" or "how": "what led you to make that choice?" says the same thing without putting the other person on the defensive.
The funnel technique
Widely used in interviewing and sales (it underpins Neil Rackham's SPIN method), the funnel technique means starting broad, then narrowing.
flowchart TD
A["Broad open questions<br/>(context, situation)"] --> B["Clarifying questions<br/>(pin down a point)"]
B --> C["Closed questions<br/>(validate, conclude, decide)"]
You open up to map the terrain, clarify to zoom in, and close to lock things down. The reverse funnel (starting with closed questions) makes the other person defensive: it feels like an interrogation.
The useful families
Beyond the open/closed axis, a few families are worth mastering:
- Clarifying question: "What exactly do you mean by 'soon'?" — fights vagueness.
- Follow-up question: "And then what happened?" — the one that builds connection (see chapter 1).
- Mirror question: you repeat the other person's last word with a questioning tone ("Swamped?") to invite them to elaborate; a technique popularized by negotiator Chris Voss.
- Hypothetical question: "If budget weren't an issue, what would you do?" — unblocks thinking.
- Scaling question: "On a scale of 10, how confident are you in this plan?" — makes a feeling measurable.
The questions to avoid
| Trap | Example | Problem |
|---|---|---|
| Leading question | "Don't you think this is a bad idea?" | Feeds the answer, biases it |
| Double question | "Do you want to do it yourself or delegate, and when?" | Confusing, the other answers only one |
| Fake question | "Are you ever going to finish?" | Disguised reproach |
| Misplaced closed question | "All good?" | Gets no useful information |
Say / don't say
- Don't say: "You don't disagree with me, do you?" (leading)
- Say: "How do you see things?" (open, neutral)
Practical exercise
Take a closed question you ask often ("Is everything clear?") and rephrase it as open ("What would be worth clarifying?"). Note the difference in the answers you get over a week.
Summary
The open / closed distinction is the foundation: closed frames and concludes, open explores and gets people talking. Avoid the accusatory "why" in favor of "what." The funnel technique (broad → clarification → closed), close to SPIN, structures an exchange without rushing it. Master the useful families — clarification, follow-up, mirror (Chris Voss), hypothetical, scaling — and steer clear of the leading, double and fake questions that close down dialogue.