Language Assessment at a Thai University: A CEFR-Based Test of English Proficiency Development

The increasing popularity of the Common European Framework of Reference (CEFR) in non-native English-speaking countries has generated a demand for concrete examples in the creation of CEFR-based tests that assess the four main English skills. In response, this research endeavors to provide insight into the development and validation of a CEFR-based test aimed at evaluating undergraduate students' English proficiency for placement tests and exit exams. The CEFR served as the framework for item development while Classical Test Theory informed the test evaluation process. A sample of 2,248 first-year students participated in Testing 1 and 3,655 first- and second-year students took part in Testing 2. The results of the analysis of the multiple-choice listening and reading tests indicated favorable levels of item difficulty and discrimination indices, as well as high reliability coefficients obtained from Cronbach's alpha, Kuder-Richardson, and split-half reliability. The correlation and regression analyses revealed close relationships between the subtests and between each subtest and the total score, supporting the test's criterion validity. The study also demonstrated significant predictive validity on TOEIC scores. The findings of this study offer implications for the development of university-level English proficiency tests that integrate CEFR levels and CTT analysis.