Johari window
The Johari window is a 2×2 model that sorts what is known about a person along two axes: what the person knows about themselves, and what others know about them. The four quadrants that result (Public, Blind Spot, Hidden, Unknown) are the operational map for feedback, criticism, and facilitated debrief. Criticism is useful because it moves data from the Blind Spot into the Public area: information others hold that the recipient cannot generate alone.
| Known to self | Not known to self | |
|---|---|---|
| Known to others | Public area. Known to self and to others. Shared baseline. | Blind spot. Unknown to self, known to others. Solicit criticism. |
| Not known to others | Hidden area. Known to self, not to others. Disclosure shrinks this. | Unknown. Known to neither. Unfulfilled potential. |
The four quadrants
Public Area
Shared self-knowledge: what you know about yourself and others also know. Baseline for professional conversation. Expanding the Public Area (through disclosure and feedback) is the usual aim of development work.
Blind Spot
What others know about you that you do not. Highest pedagogical leverage and highest interpersonal risk. It holds the data you most need and are least able to find without help. Operational stance: minimise the Blind Spot; ask for criticism; treat "what they think about me" as diagnostic data, not threat.
Hidden Area
What you know about yourself and choose not to share. Self-disclosure shrinks this quadrant. Appropriate disclosure depends on assertive behaviour and trust: without trust, crews keep reasoning private and the debrief never reaches root cause.
Unknown
What neither you nor others currently know. Tags as unfulfilled potential: new challenges, new skills, and new contexts surface material that was not visible at the start of the conversation. Facilitated discussion can create insights that neither instructor nor crew held when the session began.
Criticism as blind-spot data
Criticism, done for the receiver rather than as a release for the giver, is blind-spot reduction. The five-stage protocol (prepare; deliver behaviour-and-effect; discuss views; describe consequences; summarise) is the structured form that makes the gift receivable. Vague personal attack expands defensiveness and shrinks the Public Area; specific, changeable behaviour with owned effects keeps the transaction professional.
Receiving criticism is the reciprocal skill. Asking trainees for feedback on your own performance at the end of a debrief is the instructor-side application of the same model: you are soliciting Blind Spot data only they can provide (tone that made the captain defensive; a question that felt like interrogation).
Instructor use
On yourself
- End every debrief by asking how you could have helped more and what to improve next time. Treat answers as Blind Spot gifts, not status threats.
- Use active listening when receiving feedback so the gift actually lands; half-listening wastes the data.
- Shrink your Hidden Area appropriately: share relevant uncertainty or intent when it builds trust, without dumping personal content that does not serve learning.
On the trainee / crew in debrief
Map the discussion deliberately across all four quadrants:
| Quadrant | What you do |
|---|---|
| Public | Confirm what the crew already knows about their performance (strengths and improvable points). |
| Blind Spot | Surface what you observed that they did not (tone on a call; hesitation on a checklist; missed coordination). Prefer facilitation so they discover it; use structured criticism when the gift must be given more directly. |
| Hidden | Build trust so they disclose what they were thinking when the behaviour occurred; that is where root cause often lives. |
| Unknown | Use facilitated analysis until insights neither side held at the start become explicit learning points. |
Do not open with your full analysis. Leading with instructor verdict freezes the Blind Spot as instructor monologue and keeps Hidden material sealed. Crew analysis first expands Public and Hidden; your observations then fill Blind Spot gaps; the joint product can reach Unknown.
Connections
- Giving criticism. Five-stage protocol that turns criticism-as-gift into receivable, behaviour-focused feedback.
- Active listening. Discipline that turns offered blind-spot data into received data.
- Facilitation. Primary technique for surfacing Blind Spot and Hidden content without interrogation.
- Instruction versus facilitation. When blind-spot reduction needs direct instruction versus guided discovery.
- C-A-L model. Analysis and evaluation steps that systematically open Blind Spot and Hidden performance data.
- The briefing, conduct and debriefing loop. Reciprocal instructor feedback is the closing move of the debrief arc.
Sources
- A4.B.7 Johari Window. Four quadrants, blind-spot discipline, criticism-as-gift framing, instructor self-use and trainee mapping.
- A4.B.8 Giving Criticism. Five-stage protocol that operationalises blind-spot reduction.
- A4.B.6 Listening. LISTEN mnemonic; precondition for receiving criticism.
- A4.2.5 Conduct of Debriefing. Step 9 reciprocal feedback as instructor blind-spot solicitation.
- A1.4 Facilitation Techniques. Questioning and active-listening tools that surface blind-spot content.