Online experiments with the Percy software framework - experiences and some early results

Abstract

In early 2012 the online perception experiment software Percy was deployed on a production server at our lab. Since then, 38 experiments have been made publicly available, with a total of 3078 experiment sessions. In the course of time, the software has been continuously updated and extended to adapt to changing user requirements. Web-based editors for the structure and layout of the experiments have been developed. This paper describes the system architecture, presents usage statistics, discusses typical characteristics of online experiments, and gives an outlook on ongoing work. webapp.phonetik.uni-muenchen.de/WebExperiment lists all currently active experiments.

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