Shaded bars are confidence ranges.
— items
Changes apply to the next question.
The app uses a Rasch model to estimate a percentage score from a relatively small number of items. Information
The shaded bar is a 95% confidence range. It starts enormous and narrows with every answer. If two bars overlap heavily, the difference between them is within the margin of error.
This is a proof of concept and illustration of how LLM benchmarking works in a human context, but it is not a serious test of reasoning or intelligence and has limited psychometric validty.