What are the ISSB GTO tasks, and what is the GTO actually marking?
The short answer
The GTO tasks are a series of indoor and outdoor group exercises in which a Group Testing Officer watches how you behave with eight to ten strangers under pressure: two group discussions, a group planning exercise, the progressive and half group tasks, individual obstacles, a command task and a final group task. The group does not have to finish anything. You are marked on whether you contribute ideas, whether others accept them, whether you help the group move, whether you keep to the rules when nobody is enforcing them, and whether you can lead when put in charge and follow when you are not. The candidates who fail here are usually not the quiet ones; they are the ones who talk over the group, break rules to finish, or vanish when the task is not theirs.
What is the GTO marking?
The same officer-like qualities the psychologist reads on paper, observed in behaviour: effective intelligence in a practical problem, initiative, cooperation, social adaptability, self-confidence, decisiveness, sense of responsibility, stamina and courage. The GTO is looking for a natural contributor whom the group listens to, not a performer. Because the group is watched for two days, a role you put on cannot be sustained, and inconsistency between tasks is itself a finding.
The rules are part of the test
Every outdoor task has rules about colours, distances, what may touch the ground and which materials may be used. Nobody stops you breaking them mid-task. The GTO notes who does, and a candidate who breaks a rule to help the group finish has demonstrated exactly the opposite of what the rules exist to test.
Group discussion
The group sits in a semicircle and is given two topics in turn, usually a current national or social issue, to discuss for a set time with no chair and no conclusion required. The GTO sits outside the circle and does not intervene.
- Speak early with one clear point, then let others in. The candidate who opens with a relevant point and then listens is seen; the one who waits for the perfect moment often never speaks.
- Address the group, not the GTO. Turning to the officer while you talk is the most common tell of a candidate performing.
- Build on what others said: "adding to what he said about" is worth more than a fresh unrelated point.
- Do not dominate and do not shout. A group where two people argue and eight watch has failed as a group, and the two have failed hardest.
- Read the news for a month before you go. Topics are ordinary and current; a candidate with nothing to say has usually not read anything.
Group planning exercise
The GTO explains a model of an area, a scenario with several problems of differing urgency and a set of constraints such as time, distance and available people, then leaves the group to agree a plan. Each candidate first writes an individual plan; the group then discusses and agrees one, and a nominated candidate presents it on the model.
Listen to the narration for the facts, not the story
Note the problems, their urgency, the times and distances and the resources. Most candidates lose the exercise here, by missing one constraint.
Prioritise by life, then time, then everything else
A casualty comes before a damaged bridge; a problem with a deadline comes before one without. State the order and the reason in your written plan.
Split the group and use every resource
A plan that sends everyone to the first problem in sequence is not a plan. Assign sub-groups, give each a task and a route, and account for time.
In the discussion, converge; do not defend your plan to the death
The GTO is watching whether the group reaches a workable plan and who moved it there. Conceding a better idea is scored well; refusing to is not.
Progressive group task, half group task and final group task
The core outdoor tasks. The whole group crosses a sequence of obstacles, usually four of increasing difficulty, carrying a load, using a small set of helping materials such as a plank, a rope and a pole, under rules about what may touch the ground and which structures may be used. The half group task splits the group so a quieter candidate cannot hide behind a loud one, and the final group task is a last obstacle for the whole group at the end of the board.
- Offer a workable idea and then help execute whichever idea the group takes. Ideas that are accepted score; ideas shouted into the air do not.
- Do physical work. Carrying the load, holding the plank, going first over a doubtful crossing. The GTO notices who touches nothing.
- Keep the group legal. Point out a rule about to be broken. It is cooperation, not pedantry.
- Help the last person across. The task is the group's, and leaving someone behind to save time is noticed.
- Do not argue about the method for five minutes. A group that tries something and adjusts beats a group that debates.
Individual obstacles
A set of numbered obstacles, typically ten, attempted alone against a short time limit, with higher numbers worth more. Jumps, balance beams, rope climbs, a tyre or a wall. You choose the order; most candidates go in numerical order and run out of time before the high-value ones.
- Plan a route before the whistle: the highest-value obstacles you can genuinely do, then fill in.
- Attempt, do not hesitate. A failed attempt at a hard obstacle reads better than a long pause in front of it. Courage and stamina are literally on the sheet.
- Do not skip the safety instructions. Injuries end boards.
- Fitness matters here more than anywhere else at ISSB. Six weeks of running, pull-ups, push-ups and balance work before your date is enough for most candidates; the physical demand is moderate, and confidence is the real variable.
Command task
Each candidate in turn is made commander of a small obstacle task and asked to pick two or three helpers from the group. The GTO briefs you alone, may question you about your plan, and then watches you brief and lead your helpers. The same rules as the group tasks apply.
Pick helpers for the task, not your friends
Choose the people who were useful in the group tasks. The GTO notes whom you choose and why.
Brief them clearly before anyone moves
The obstacle, the rules, the plan, who does what. A commander who starts shouting instructions mid-task did not brief.
Lead from the front and keep the plan
Do the doubtful first crossing yourself. Adjust if it fails, but visibly stay in charge; asking the helpers what to do is the failure mode.
Do not break a rule to finish
The GTO may make the task hard on purpose to see whether you cut a corner under pressure. Finishing is not the point.
When you are a helper
You are still being watched. Follow the commander's plan willingly, work hard, and offer a suggestion only if it is useful and only once. Undermining another candidate's command task is scored against you, not them.
How do you prepare for the GTO ground?
- Fitness first, six weeks out. Running, pull-ups, push-ups, a wall or beam to practise balance. Aim for comfortable, not athletic.
- Practise discussing current topics aloud with friends, for a set time, without a chair. Get used to entering and leaving a conversation cleanly.
- Do planning problems on paper: a scenario, three problems, limited people and time. Write the priority and the split.
- Read the rules of the outdoor tasks until they are reflex. They are consistent from board to board and are explained on the day, but a candidate who already knows the colour and ground rules spends their attention on the task.
- Be the same person on every task. The GTO compares your behaviour across two days. The workable strategy is to be genuinely useful, consistently, rather than to perform.
How the GTO's findings are combined with the psychologist's and the interviewer's is in what happens at ISSB, and the written tests that run alongside are in ISSB psychological tests explained.