What happens in the room
The Human Judgment Lab.
One sitting of 45 to 60 minutes with a single batch. Participants work in a browser, verify once by phone, and answer a set of situations alone. Each person meets their own Gap privately; the room then sees how it split as a group. Nothing is installed, nothing persists afterwards, and no answer is ever attached to a name.
Before the day
What each side brings.
The setup is deliberately thin. A session that needed installation, accounts or IT coordination would not survive contact with an actual timetable.
| You provide | We provide | |
|---|---|---|
| The room | A hall or lab, and one screen everybody can see | Nothing to install on it |
| Devices | A browser per participant — lab machine or their own phone | A session link. No app, no download |
| People | One batch, together, in one sitting | A facilitator, in person or remote |
| Time | One slot of 45 to 60 minutes, uninterrupted | The full session inside that slot |
| Consent | Participation explained beforehand, opt-out honoured | The wording to explain it with |
What participants are told, and what they can decline. Student privacy
The session, in order
Five stages.
Timings are approximate and shift with batch size. What does not shift is the order, because the order is what makes the answers worth collecting.
Explain
What the session is, what it is not, and what happens to the answers. Participants are told they can decline, and declining costs them nothing.
Verify
One phone verification each, so that one person cannot answer several times. It confirms a distinct human and is not stored against any answer.
Answer alone
Each person reads a situation, chooses, and locks a prediction about what the rest of the batch chose. Nobody sees anybody else's screen or any running figure.
Meet your own number
Each participant sees their own Gap on their own screen. This part is private, and it is the part most people came for without knowing it.
The room reads itself
The batch's split goes on the shared screen. Not who chose what — how the group divided, and where it collectively misread the wider public.
Stage five is where the room goes quiet. A batch that has sat together for years discovering it disagrees about family obligation is a conversation nobody prepared for, and it is the reason to run the session at all.
Two screens, two outputs
What one person sees,
and what the room sees.
These never overlap. The shared screen never shows anything an individual answered, and an individual's screen never shows anybody else.
On their own screen
Only their own reading
Their choice, their locked prediction, the verified figure, and the distance between the last two. Nothing about any classmate, and nothing anybody else can see.
On the shared screen
Only the shape of the group
How the batch split across the options, and how far the batch as a whole sat from the wider public. No names, no per-person answers, and no ordering of participants.
Why the room result comes last
If the shared screen lit up while people were still answering, everyone still answering would be responding to it. The batch would converge, the split would narrow, and the session would end up measuring how quickly a room agrees with itself. So nothing appears on the shared screen until the answering is finished.
This is the same rule the app applies to a circle reading, for the same reason. Min-N
Constraints worth knowing
Four limits we will not move.
One session per batch
A second sitting with the same group measures a group that already knows the format. The instrument works once per batch, and running it twice would not produce a comparison worth having.
The batch has to be big enough
Below a certain size a group report becomes identifiable in practice even when it is anonymous on paper. If the batch is too small, we say so rather than producing a report that should not exist.
Opt-out has to be real
A participant who felt compelled would give compliant answers rather than honest ones. If declining carries a cost, the session is collecting the wrong thing, and we would rather not run it.
No live commentary on individuals
A facilitator will not call out an answer, ask who chose what, or invite anybody to defend their choice. The discussion is about the split, not about the people in it.
Questions
Straight answers.
Do students need to install anything?
No. The session runs in a browser from a link. There is no app to download, no account created that persists after the sitting, and nothing left running on a lab machine afterwards.
Why is phone verification needed for a classroom session?
So that one person cannot answer several times and shift the batch's split on their own. The number confirms a distinct human; it is not stored against any answer and is not shown to the institution or to other participants.
Can we run it without verification to save time?
No. Unverified answers cannot support a figure, which would make both the room's result and your report meaningless. Verification takes a minute or two and is the only reason the numbers mean anything.
What if a student refuses to take part?
They sit it out, and nothing follows from that. Participation is explained beforehand and declining is expected to carry no consequence — if it does at your institution, the session will collect compliance rather than judgment.
Can a teacher see the shared result before the students?
No. The shared screen opens for the room at once, after the answering is finished. There is no earlier or fuller view for a coordinator, a facilitator, or anybody else.
What is the smallest batch you will run this with?
Large enough that no individual can be inferred from the group result. The exact figure depends on how the batch is structured, so we assess it before agreeing a date rather than discovering it afterwards.
Can we run the same session again next year with a new batch?
Yes. The limit is one session per batch, not one per institution. A new cohort is a new group, and the national figures it is compared against will have moved on by then too.
How soon do we get the report?
After the session, once the group's aggregate has been assembled and reviewed. We do not hand over a report in the room, because a figure produced under time pressure is exactly the kind this platform refuses to publish.
Book a slot for one batch.
Tell us the size and the setting. If it is not a fit, we will say so before a date is agreed.