Running Online Experiments Using Web-Conferencing Software

We report the results of a novel protocol for running online experiments using a combination of an online experimental platform in parallel with web-conferencing software in two formats - with and without subject webcams - to improve subject attention and engagement. We compare results between our online sessions with the offline (lab) sessions of the same experiment. We find that both online formats lead to comparable subject characteristics and performance as the offline (lab) experiment. However, the webcam-on protocol has less noisy data, such that good results can be achieved without substantially increasing sample sizes.