“…For example, Peffer et al (2019) used the k‐means algorithm to cluster students and explore the differences in their inquiry approaches. - The third category, prediction (34 papers), includes studies that use the extracted features to predict an outcome variable, which can be categorical (classification) or numerical (regression). Studies in this category have adopted a variety of models and techniques, including regression models (McBride et al, 2016; Owen et al, 2016; Ren et al, 2019; Sawyer et al, 2018), decision trees (Doleck et al, 2014; Gobert et al, 2015; Malkiewich et al, 2016; Xing et al, 2021), random forests (Han et al, 2019; Qiao & Jiao, 2018) and neural networks (Cock et al, 2021; Käser & Schwartz, 2019; Poitras et al, 2019; Reilly & Dede, 2019).
- The fourth category, modelling (8 papers), denotes studies aimed at directly representing the underlying cognitive processes in the model.
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