Estimating and Fitting the Non-continuous category scored Polytomous Items under the Weighted Score Logistic Model and its Simulation Study

Xiaozhu Jian, Buyun Dai, Yeqi Qing, YuanPing Deng, Department of Psychology, School of Public Policy and Management, School of Economics and Management, Nanchang University, School of Psychology, Jiangxi Provincial Philosophy and Social Sciences Laboratory for Data Science and Intelligent Psychological Assessment and Services, Jiangxi Normal University, Faculty of Education, Guangxi Normal University, Normal College, Jimei University

Applied Psychological Measurement

Published online on January 29, 2026

Abstract

Applied Psychological Measurement, Ahead of Print.
This study presents a novel extension of the weighted score logistic model (WSLM). The WSLM is an advancement of the traditional dichotomous logistic model that incorporates an additional weighted score parameter. This model is specifically designed to ...