Thank you for your interest in our study. Please read the following information carefully before you decide to participate. Your participation in this research is voluntary. It is your choice whether to participate or not. Please do not hesitate to write to us at if you have any further questions regarding the study. If you want to take part in the study, please click the „accept and continue” button at the end of this information.

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Please read the instructions carefully!

The story

"Hi, I'm Destiny!"

Tomorrow is Destiny's birthday and you don't know her well but you want to give her a birthday present. You only know that she prefers particular colors, shapes, or textures over others.

Instructions for a block

You will see a series of scenarios with one person and three objects. The person and their preferences for color, shape or texture will stay the same over the whole block but the objects will change. For example, the texture can be solid, striped or polka-dotted.

One scenario might look like this:

Destiny is told to pick an object that has a certain feature (e.g. that is solid). Out of the objects with this feature, Destiny then picks an object according to her preferences. Destiny's choice will solely depend on the feature category (e.g. color) you want to learn Destiny's preferences for. You know that she always chooses her preferred color given the available choices and that her preferences don't change over time.

Your task is to adjust the sliders according to Destiny's preferences.

In this example you should adjust the sliders. Does she like blue objects? Red objects? Green objects?


The experiment consists of experimental blocks. In each block you will need to find a birthday present for a new person according to their preferences. Your task is to find out the person’s 1st choice, 2nd choice, and 3rd choice. There will be 4 trials in each block.

Let's go!

"Hi, I'm !"

heard the description and chose the object with the yellow frame.

always chooses the object with preferred given the available choices.

Please adjust the sliders according to preferences.

definitely not definitely
Please ajust all the sliders according to what you learned about what likes. If you didn't learn anything just touch all the sliders.

Are you sure you now know 's preferences for s?

No, I have no idea.
Yes, I'm sure!
Please answer by moving the slider.

You go to the birthday party.

You guessed that 's favorite is and that also likes things.
That's why you give a present with a birthday card.


's favorite is and second favourite is but doesn't like at all.

Block of

In this next block you will meet a new person and you will again have to find out about their preferences to find a birthday present for them.
As before, you will see a series of scenarios with the person and three objects. The person will stay the same over the whole block but the objects will change. The person doesn't lie and the preferences they have will stay the same over the block.

Are you ready?

Additional information

Answering these questions is optional, but will help us understand your answers.

Did you read the instructions and do you think you did the task correctly?



Level Of Education:

Native Language:

Did you enjoy the task?

We would be interested in any comments you have about this experiment. Please type them here:

Thanks to for the avatar pictures. People vector created by freepik -

You might have felt that sometimes it was really hard to learn the preferences.

It happened because some blocks gave incomplete evidence about the preferences of a person.

Our goal is to study how participants make their decisions in different types of situations,

that is why we constructed blocks with both complete and incomplete information.

Thank you for your time!