Instructions

In this study, you will be anonymously matched with another player. You will interact only via the computer and will not know which other student you are matched with. Each player will be randomly assigned a role: Row or Column. You will each simultaneously choose between four possible playing cards: Joker, Ace, Two, or Three. One player will then win 5 points while the other loses 5 points. Who wins and who loses depends on the combination of cards chosen. You will learn of the other player's decisions after both of you have made your choices.

• If both players select Joker, then Row wins
• If one player selects Joker, then Column wins
• If neither player selects Joker, then Column wins if the cards match and Row wins if they mismatch

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