Stanford University

Stanford ALPS Lab

Welcome! Please consider participating in this study only if you are a native speaker of English.

Note: you won't be able to preview this HIT before accepting it because it's so short.

Thank you so much for participating in this study. We have prepared a card game for you! In this game, each card has one or two of the following animals: dog, cat, or elephant. You can see the cards below.

You are going to play this game with Bob. You will see a card and Bob is going to guess what animal is on the card. Bob CANNOT see what is on your card. Please tell us if Bob's guess is right or not.

Click NEXT to play the game.

What is your age?

What is your gender identity?

Have you ever learned about logical conjunction (&) and disjunction (V) as part of a course or reading on math, logic, or programming ?

What is your native language?

What in your opinion was the goal of the experiment?

If you have any comment about the experiment, please write it here. Did you happen to run into any issues?

Thank you for participating in the study. The purpose of the study is to understand how humans understand the meaning of the logical words "and" and "or". In this study, we ask participants to judge whether statements with "or" were right or wrong depending on what they saw on a set of cards. If you would like to know more about this topic or if you have any questions or concerns, please don't hesitate to contact the lead researcher at