01532nas a2200169   4500008003900000245007100039210006900110300001200179490000700191520103000198100001601228700001801244700001801262700001801280700001901298856004501317       2018                          d00aLatent Class Analysis of Recurrent Events in Problem-Solving Items0 aLatent Class Analysis of Recurrent Events in ProblemSolving Item  a478-4980 v423 aComputer-based assessment of complex problem-solving abilities is becoming more and more popular. In such an assessment, the entire problem-solving process of an examinee is recorded, providing detailed information about the individual, such as behavioral patterns, speed, and learning trajectory. The problem-solving processes are recorded in a computer log file which is a time-stamped documentation of events related to task completion. As opposed to cross-sectional response data from traditional tests, process data in log files are massive and irregularly structured, calling for effective exploratory data analysis methods. Motivated by a specific complex problem-solving item “Climate Control” in the 2012 Programme for International Student Assessment, the authors propose a latent class analysis approach to analyzing the events occurred in the problem-solving processes. The exploratory latent class analysis yields meaningful latent classes. Simulation studies are conducted to evaluate the proposed approach.1 aXu, Haochen1 aFang, Guanhua1 aChen, Yunxiao1 aLiu, Jingchen1 aYing, Zhiliang  uhttps://doi.org/10.1177/0146621617748325