Machine Learning, Natural Language Processing, and Psychometrics - Paperbackby Hong Jiao (Editor), Robert W. Lissitz (Editor) With the exponential increase of digital assessment, different types of data in addition to item responses become available in the measurement process. One of the salient features in digital assessment is that process data can be easily collected. This non conventional structured or unstructured data source may bring new perspectives to better understand the assessment products or accuracy and the