Tool 09 · CBT
Catastrophe Scale
Name a worry. Rate it on three sliders: the worst possible outcome, the best, and what\'s actually most likely. The gap between them is where the catastrophising lives.
A short phrase. Specific helps. "I might miss Friday\'s deadline" works better than "work".
0 = "nothing bad happens", 10 = "everything collapses".
0 = "nothing bad happens", 10 = "everything works out".
Be honest. Not optimistic, not defensive — what\'s the realistic centre.
Anchor three points
Worst and best are easy. Most likely is the one that takes honest thought — that\'s the one that matters.
When a worry feels 100%
If you\'re certain of a bad outcome, this tool forces the question: certain how much, exactly?
The gap is the point
A small gap (0–2) means you\'re well-calibrated. A large gap (5+) is usually the worry doing the thinking, not you.
What this actually does
Cognitive behavioural therapy calls the gap between imagined worst-case and likely outcome "catastrophising magnitude". When the gap is wide, the brain is treating a low-probability scenario as though it were the main outcome. Naming the gap shrinks it — partly because you have to commit to a number, and partly because the visual shows the worst-case as one option among several, not as the headline.
This tool asks you to pick three numbers, not one. The first two (worst and best) are easy; the third (most likely) is where the practice happens. If you find yourself sliding "most likely" up toward the worst without meaning to, that\'s the catastrophising showing itself.
Who it\'s for
People with worries that feel binary: either total disaster or total success, with no middle. People who want a quick, visual check on whether a thought is realistic or amplified.
It\'s not for acute crisis. If your situation is genuinely dangerous or time-sensitive, the most likely number is the one to act on — not the visualisation. (See Disclaimer.)
How to read the results
Gap 0–2: well-calibrated. The worry matches what would actually happen. You probably don\'t need to reframe; you may need to act.
Gap 3–4: moderate. The worst-case is in there but it\'s not running the show. Worth noticing, not worth panicking.
Gap 5+: large. The gap itself is the distortion. The guided reframe below is the place to spend ten minutes.
Which side "most likely" is closer to also matters. If it\'s closer to the best, you may be over-compensating with optimism (a different distortion — Thought Record is better for that). If it\'s near the middle, you\'re probably thinking clearly.
Limitations
The sliders can\'t replace real evidence. If you genuinely don\'t know how likely something is, the tool will not invent an answer. For worries with hard data (probability of getting the job, etc.), look up the base rate first. For worries with no data, "most likely" is a guess — a useful one, still a guess.
FAQ
What if my "most likely" is the same as my "worst"?
That\'s a sign the worry is doing the thinking. Try setting "best" higher than feels comfortable (e.g. 6) and dragging "most likely" toward the centre. If it won\'t move, your worry is in "fortune-telling" territory — try the Cognitive Distortion Spotter.
Why is the gap visualisation a triangle?
A triangle puts the worst, best, and most likely in the same picture, with a marker showing where "most likely" sits relative to the extremes. It\'s a quick way to see if you\'re closer to one side than another.
Can I save my rating?
Not in this tool — by design, the scale is meant for in-the-moment use. For a longer record, use the Thought Record, which can hold the same three numbers.
What are the common mistakes when using Catastrophe Scale?
Most common mistakes come down to four habits: entering 20 when the field expects 0.2 because the field is a percentage; leaving a field blank and accepting the default without checking what it stands for; changing one input and reading a result that was calculated before the change; and quoting the output as an exact figure when the page describes it as a reference estimate. Press calculate again after any edit, and treat the number as a reference point rather than a final answer.Advertisement