TY - JOUR A1 - Judah, Gaby A1 - De Witt Huberts, Jessie A1 - Drassal, Allan A1 - Aunger, Robert T1 - The development and validation of a Real Time Location System to reliably monitor everyday activities in natural contexts JF - PLoS one N2 - Introduction Methods A commercial Real Time Location System was adapted to meet these requirements and subsequently validated in three households by monitoring various bathroom behaviours. Results The results indicate that the system is robust, can monitor behaviours over the long-term in different households and can reliably distinguish between individuals. Precision rates were high and consistent. Recall rates were less consistent across households and behaviours, although recall rates improved considerably with practice at set-up of the system. The achieved precision and recall rates were comparable to the rates observed in more controlled environments using more valid methods of ground truthing. Conclusion These initial findings indicate that the system is a valuable, flexible and robust system for monitoring behaviour in its natural environment that would allow new research questions to be addressed. Y1 - 2017 U6 - https://doi.org/10.1371/journal.pone.0171610 SN - 1932-6203 VL - 12 PB - PLoS CY - San Fransisco ER -