Publication Date
| In 2025 | 0 |
| Since 2024 | 0 |
| Since 2021 (last 5 years) | 0 |
| Since 2016 (last 10 years) | 1 |
| Since 2006 (last 20 years) | 2 |
Descriptor
Author
| Cohen, Allan S. | 2 |
| Alexeev, Natalia | 1 |
| Choi, Youn-Jeng | 1 |
| Karadavut, Tugba | 1 |
| Kim, Seock-Ho | 1 |
Publication Type
| Journal Articles | 2 |
| Reports - Research | 2 |
Education Level
| Elementary Education | 1 |
| Grade 4 | 1 |
| Intermediate Grades | 1 |
| Secondary Education | 1 |
Audience
Location
| Qatar | 2 |
| Australia | 1 |
| Austria | 1 |
| Colombia | 1 |
| El Salvador | 1 |
| Hong Kong | 1 |
| Indonesia | 1 |
| Jordan | 1 |
| Peru | 1 |
| Singapore | 1 |
| Slovakia | 1 |
| More ▼ | |
Laws, Policies, & Programs
Assessments and Surveys
| Program for International… | 1 |
| Trends in International… | 1 |
What Works Clearinghouse Rating
Peer reviewed
Direct linkKaradavut, Tugba; Cohen, Allan S.; Kim, Seock-Ho – Measurement: Interdisciplinary Research and Perspectives, 2020
Mixture Rasch (MixRasch) models conventionally assume normal distributions for latent ability. Previous research has shown that the assumption of normality is often unmet in educational and psychological measurement. When normality is assumed, asymmetry in the actual latent ability distribution has been shown to result in extraction of spurious…
Descriptors: Item Response Theory, Ability, Statistical Distributions, Sample Size
Choi, Youn-Jeng; Alexeev, Natalia; Cohen, Allan S. – International Journal of Testing, 2015
The purpose of this study was to explore what may be contributing to differences in performance in mathematics on the Trends in International Mathematics and Science Study 2007. This was done by using a mixture item response theory modeling approach to first detect latent classes in the data and then to examine differences in performance on items…
Descriptors: Test Bias, Mathematics Achievement, Mathematics Tests, Item Response Theory
