  Creativity in social robots requires further attention in the
interdisciplinary field of Human-Robot Interaction (HRI). This paper
investigates the hypothesised connection between the perceived creative agency
and the animacy of social robots. The goal of this work is to assess the
relevance of robot movements in the attribution of creativity to robots. The
results of this work inform the design of future Human-Robot Creative
Interactions (HRCI). The study uses a storytelling game based on visual imagery
inspired by the game 'Story Cubes' to explore the perceived creative agency of
social robots. This game is used to tell a classic story for children with an
alternative ending. A 2x2 experiment was designed to compare two conditions:
the robot telling the original version of the story and the robot plot-twisting
the end of the story. A Robotis Mini humanoid robot was used for the
experiment. As a novel contribution, we propose an adaptation of the Short
Scale Creative Self scale (SSCS) to measure perceived creative agency in
robots. We also use the Godspeed scale to explore different attributes of
social robots in this setting. We did not obtain significant main effects of
the robot movements or the story in the participants' scores. However, we
identified significant main effects of the robot movements in features of
animacy, likeability, and perceived safety. This initial work encourages
further studies experimenting with different robot embodiment and movements to
evaluate the perceived creative agency in robots and inform the design of
future robots that participate in creative interactions.
