QualTurk increases the quality of data collected from Amazon Mechanical Turk by flagging respondents who fail quality checks. The system is designed to support Mechanical Turk in conjunction with the Qualtrics survey platform.

MTurk workers are automatically registered by this system and forwarded to your Qualtrics survey. The quality checks include i. survey completion above a minimum time threshold (optional), ii. correctly answering an arbitrary set of pre-screening questions (optional), iii. correctly answering two specific questions that test if respondents read instructions (required). The system also ensures that workers cannot repeat the same HIT. The system provides workers with a completion code and optional debrief text. The code enables them to complete the HIT.

QualTurk is available at and open sourced on GitHub.

Automotive GUI Prototype

I created a graphical user interface prototype in 2012 for a laboratory study. In the study, this novel object-based interface was compared to a traditional icon-based interface with respect to how distracting it is to the driver, how long it takes to retrieve services, and which one offers a better user experience. Try the interactive online demo.