LAUSR

Abstract With the advent of online subject pools, conducting experiments outside the laboratory has become more popular among the scientific community. Unlike the lab, online and field environments tend to be accompanied by a loss of control. In this article we introduce otree_tools , a concise yet powerful add-on for oTree (Chen et al., 2016). otree_tools provides novel ways by which to measure behaviors that are potentially important in the social sciences, such as attention, multitasking and effort. The software also features a novel method of tracking time through the identification of noise. We demonstrate the utility of otree_tools with the help of experimental evidence. The software substantially increases control of the environment. Moreover, the original metrics can be employed for innovative outcome variables, opening the avenue for new research opportunities.