Table 1.

Within- and between-participants division of the experiment.

Pre-game	Game	Post-game
Random sequence generation	Condition 1, Unaware Computer exploits patterns in participant’s choice history against the participant. Participant is not informed of computer’s strategy	Random sequence generation
	Condition 2, Aware Computer exploits patterns in participant’s choice history against the participant. Participant is explicitly informed of computer’s strategy and told that to win they must be random
	Condition 3, Control Computer follows simple pattern continuously with 85% probability on each trial and acts randomly with 15% probability. Participant is not informed of computer’s strategy

Each participant carried out all three parts of the experiment (Pre-game, Game, and Post-game). Different participant groups were randomized into conditions 1–3 only in the Game part of the experiment.