Related Experiment Video
Updated: Mar 9, 2026

A Tablet-Based Curriculum-Based Measurement Protocol for Kindergarten Writing
Published on: February 7, 2025
Evaluation of the Bifactor Nominal Response Model Analysis of a Health Efficacy Measure
Kathleen Suzanne Johnson Preston1, Zexuan Han
1Kathleen Suzanne Johnson Preston, Department of Psychology, California State University, 800 N. State College Blvd., Fullerton, CA 92834-6848, USA, kpreston@fullerton.edu.
Abstract:
The bifactor nominal response item response theory (IRT) model, proposed by Cai, Yang and Hansen (2011), provides an extension of Bock's (1972, 1997) unidimensional nominal response model to multidimensional IRT. This model has not been utilized in any published studies since its original development. In this study, the model was applied to data from a sample of college students (N = 799) to evaluate the psychometric properties of a health efficacy measure. The nominal response model has the unique capability to estimate the functioning of each single response category, and higher response categories were found to have better functioning in this study. Poor-functioning categories were identified and combined into their adjacent categories. Items with revised response format showed improved functioning. The bifactor nominal response model is a useful tool for evaluation of bifactor scales with ordered while non-equivalently functioning categories.
More Related Videos
08:27Applying an eMASS Customization Program as a Research Tool to Evaluate Consumer Benefits
Published on: September 27, 2019
09:00Author Spotlight: Validation of SICOLE-R for Assessing Cognitive and Reading Skills in Spanish-Speaking Children and Its Role in Personalized Education
Published on: August 16, 2024
Related Concept Videos
Factorial Design
Pharmacodynamic Models: Direct Effect Model and Indirect Response Model
Pharmacodynamic Models: Additive and Proportional Drug Effect Model
Factors Affecting Illness
For instance, risk factors are connected to illness,...
Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
Pharmacodynamic Models: Linear Concentration–Effect Model