ISSN 0439-755X
CN 11-1911/B

Acta Psychologica Sinica ›› 2023, Vol. 55 ›› Issue (8): 1383-1396.doi: 10.3724/SP.J.1041.2023.01383

• Reports of Empirical Studies • Previous Articles    

Binary modeling of action sequences in problem-solving tasks: One- and two-parameter action sequence model

FU Yanbin, CHEN Qipeng, ZHAN Peida()   

  1. School of Psychology, Zhejiang Normal University; Intelligent Laboratory of Child and Adolescent Mental Health and Crisis Intervention of Zhejiang Province; Key Laboratory of Intelligent Education Technology and Application of Zhejiang Province, Jinhua 321004, China
  • Received:2023-01-04 Published:2023-08-25 Online:2023-05-12
  • Contact: Peida Zhan, E-mail: pdzhan@gmail.com
  • Supported by:
    National Natural Science Foundation of China(Project No. 31900795)

Abstract:

Process data refers to the human-computer or human-human interaction data recorded in computerized learning and assessment systems that reflect respondents’ problem-solving processes. Among the process data, action sequences are the most typical data because they reflect how respondents solve the problem step by step. However, the non-standardized format of action sequences (i.e., different data lengths for different participants) also poses difficulties for the direct application of traditional psychometric models. Han, Liu, and Ji (2022) proposed the sequential response model (SRM) by combining dynamic Bayesian networks with the nominal response model (NRM) to address the shortcomings of existing methods. Similar to the NRM, the SRM uses multinomial logistic modeling, which in turn assigns different parameters to each possible action or state transition in the task, leading to high model complexity. Given that actions or state transitions in problem-solving tasks have correct and incorrect outcomes rather than equivalence relations without quantitative order, this study proposed two action sequence models based on binary logistic modeling with relatively low model complexity: the one- and two-parameter action sequence models (1P and 2P-ASM). Unlike the SRM, which applies the NRM to action sequence analysis, the 1P-ASM and 2P-ASM adapt the simpler one- and two-parameter IRT models to action sequence analysis, respectively. An empirical example was provided to compare the performance of SRM and two ASMs with a real-world computer-based interactive item, “Tickets,” in the PISA 2012, and a simulation study was further conducted to explore the psychometric performance of the proposed models in different test scenarios.

Key words: process data, action sequence, problem state transition, action sequence model, item response theory