HART: The human affect recording tool
This paper evaluates the Human Affect Recording Tool (HART), a Computer Assisted Direct Observation (CADO) application that facilitates scientific sampling. HART enforces an established method for systematic direct observation in Educational Data Mining (EDM) research, the Baker Rodrigo Ocumpaugh Monitoring Protocol  . This examination provides insight into the design of HART for rapid data collection for both formative classroom assessment and educational research. It also discusses the possible extension of these tools to other domains of affective computing and human computer interaction.
Jaclyn Ocumpaugh, Ryan S. Baker, Ma Mercedes Rodrigo, Aatish Salvi, Martin van Velsen, Ani Aghababyan, and Taylor Martin. 2015. HART: the human affect recording tool. In Proceedings of the 33rd Annual International Conference on the Design of Communication (SIGDOC ’15). Association for Computing Machinery, New York, NY, USA, Article 24, 1–6. DOI:https://doi.org/10.1145/2775441.2775480