Hostname: page-component-89b8bd64d-46n74 Total loading time: 0 Render date: 2026-05-06T12:15:05.547Z Has data issue: false hasContentIssue false

Diagnostic Classification Analysis of Problem-Solving Competence using Process Data: An Item Expansion Method

Published online by Cambridge University Press:  01 January 2025

Peida Zhan
Affiliation:
Zhejiang Normal University
Xin Qiao*
Affiliation:
University Of Maryland
*
Correspondence should bemade to Xin Qiao, Measurement, Statistics, and Evaluation, Department of Human Development and Quantitative Methodology, University of Maryland, 1230 Benjamin Building, College Park, MD20742, USA. Email: xin.qiao56@gmail.com

Abstract

Process data refer to data recorded in computer-based assessments (CBAs) that reflect respondents’ problem-solving processes and provide greater insight into how respondents solve problems, in addition to how well they solve them. Using the rich information contained in process data, this study proposed an item expansion method to analyze action-level process data from the perspective of diagnostic classification in order to comprehensively understand respondents’ problem-solving competence. The proposed method cannot only estimate respondents’ problem-solving ability along a continuum, but also classify respondents according to their problem-solving skills. To illustrate the application and advantages of the proposed method, a Programme for International Student Assessment (PISA) problem-solving item was used. The results indicated that (a) the estimated latent classes provided more detailed diagnoses of respondents’ problem-solving skills than the observed score categories; (b) although only one item was used, the estimated higher-order latent ability reflected the respondents’ problem-solving ability more accurately than the unidimensional latent ability estimated from the outcome data; and (c) interactions among problem-solving skills followed the conjunctive condensation rule, which indicated that the specific action sequence appeared only when a respondent mastered all required problem solving skills. In conclusion, the proposed diagnostic classification approach is feasible and promising analyzing process data.

Information

Type
Application Reviews and Case Studies
Copyright
Copyright © 2022 The Author(s) under exclusive licence to The Psychometric Society

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

Supplementary material: File

Zhan and Qiao supplementary material

Online Appendix
Download Zhan and Qiao supplementary material(File)
File 995.2 KB
Supplementary material: File

Zhan and Qiao supplementary material

Zhan and Qiao supplementary material 1
Download Zhan and Qiao supplementary material(File)
File 21.6 MB