Publication Date
| In 2025 | 0 |
| Since 2024 | 0 |
| Since 2021 (last 5 years) | 0 |
| Since 2016 (last 10 years) | 0 |
| Since 2006 (last 20 years) | 2 |
Descriptor
| Comparative Analysis | 2 |
| Item Response Theory | 2 |
| Scores | 2 |
| Test Length | 2 |
| Test Reliability | 2 |
| Computer Assisted Testing | 1 |
| Error of Measurement | 1 |
| Models | 1 |
| Responses | 1 |
| Sample Size | 1 |
| Simulation | 1 |
| More ▼ | |
Source
| ETS Research Report Series | 2 |
Publication Type
| Journal Articles | 2 |
| Reports - Research | 2 |
Education Level
Audience
Location
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Peer reviewed
Download full textLee, Yi-Hsuan; Zhang, Jinming – ETS Research Report Series, 2010
This report examines the consequences of differential item functioning (DIF) using simulated data. Its impact on total score, item response theory (IRT) ability estimate, and test reliability was evaluated in various testing scenarios created by manipulating the following four factors: test length, percentage of DIF items per form, sample sizes of…
Descriptors: Test Bias, Item Response Theory, Test Items, Scores
Rotou, Ourania; Patsula, Liane; Steffen, Manfred; Rizavi, Saba – ETS Research Report Series, 2007
Traditionally, the fixed-length linear paper-and-pencil (P&P) mode of administration has been the standard method of test delivery. With the advancement of technology, however, the popularity of administering tests using adaptive methods like computerized adaptive testing (CAT) and multistage testing (MST) has grown in the field of measurement…
Descriptors: Comparative Analysis, Test Format, Computer Assisted Testing, Models
