Try a Mini Experiment

What you’ll see

An ambiguous box contains 100 balls. Each ball can be one of four colors, but you do not know the actual color composition of the box. You will see five draws with replacement from this box.

What you’ll do

You will make ten binary choices. In each question, one or more colors are designated as winning colors, and you receive a hypothetical $5 prize if the ball drawn from a box is one of those colors. You choose which box you want the ball drawn from: a known box, where you know exactly how many balls are winning colors, or the ambiguous box, where you only observe the five previous draws.

How each question is chosen

The questions are selected adaptively using Dynamically Optimized Sequential Experimentation (DOSE). Based on your previous answers, DOSE selects the next question that is expected to be most informative about your ambiguity attitudes.

What happens after ten questions

Different ambiguity models will be fitted to your answers and used to predict choices you were never asked about. You will answer only questions involving two or three winning colors, while the models will predict your choices for single-color events.

The $5 prize is hypothetical: nothing is paid, nothing is stored, and nothing you do here leaves your browser.

The question pool

Please confirm

You chose .