Methodological Challenge: Addressing Bots in Online Research.

Internet-based research has become useful for data collection, particularly because it reduces the time and resources required for recruitment. Although participant recruitment using social media is a scientifically and ethically sound methodology for many studies, this approach attracts fraudulent participants and Internet bots which can pose serious threats to sample validity and data integrity. We present several case examples of research studies in which bots were encountered and the procedures used to address them. In addition, we provide an overview of strategies researchers can use to mitigate the risks associated with Internet-based recruitment methods.