1. A Hidden Markov Model for Learning Trajectories in Cognitive Diagnosis With Application to Spatial Rotation Skills. Issue 1 (January 2018) Authors: Chen, Yinghan; Culpepper, Steven Andrew; Wang, Shiyu; Douglas, Jeffrey Other Names: Chen Yunxiao guest-editor. Journal: Applied psychological measurement Issue: Volume 42:Issue 1(2018) Page Start: 5 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗