Psychometric Approaches to Analyzing C-Tests 2PL IRT L2 EL
- Author(s):
- Alpizar, David; Li, Tongyun; Norris, John M.; Gu, Lixiong
- Publication Year:
- 2023
- Source:
- Language Testing, v40 n1 p107-132, Jan 2023
- Document Type:
- Article
- Page Count:
- 26
- Subject/Key Words:
- 2-Parameter Logistic (2PL) Model, Multidimensional IRT Model, Item Response Theory (IRT), Local Item Dependence, Testlet, Second Language (L2), English Learners (EL), English Language Proficiency, Psychometrics