@inproceedings { correia19, abstract = {This paper explores how robotic teammates can enhance and promote cooperation in collaborative settings. It presents a user study in which participants engaged with two fully autonomous robotic partners to play a game together, named "For The Record", a variation of a public goods game. The game is played for a total of five rounds and in each of them, players face a social dilemma: to cooperate i.e., contributing towards the team’s goal while compromising individual benefits, or to defect i.e., favouring individual benefits over the team’s goal. Each participant collaborates with two robotic partners that adopt opposite strategies to play the game: one of them is an unconditional cooperator (the pro-social robot), and the other is an unconditional defector (the selfish robot). In a between-subjects design, we manipulated which of the two robots criticizes behaviours, which consists of condemning participants when they opt to defect, and it represents either an alignment or a misalignment of words and deeds by the robot. Two main findings should be highlighted (1) the misalignment of words and deeds may affect the level of discomfort perceived on a robotic partner; (2) the perception a human has of a robotic partner that criticizes him is not damaged as long as the robot displays an alignment of words and deeds.}, booktitle = {2019 28th IEEE International Conference on Robot and Human Interactive Communication (RO-MAN)}, keywords = {Social Robotic Companions;Game Theory;}, pages = {1--7}, title = {Walk the Talk! Exploring (Mis) Alignment of Words and Deeds by Robotic Teammates in a Public Goods Game}, year = {2019}, author = {Filipa Correia and Shruti Chandra and Samuel Mascarenhas and Julien Charles-Nicolas and Justin Gally and Diana Lopes and Fernando P. Santos and Francisco C. Santos and Francisco S. Melo and Ana Paiva} }

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