Research on assessing English as a foreign language (EFL) development has been growing recently. However, empirical evidence from longitudinal analyses based on substantial samples is still needed. In such settings, tests for measuring language development must meet high standards of test quality such as validity, reliability, and objectivity, as…

Language tests are useful for many purposes, including monitoring language learning progress and evaluating language programs. This study investigated the interpretations and usefulness of the American Council on the Teaching of Foreign Languages (ACTFL) Oral Proficiency Interview -- Computer (OPIc) scores across four languages at a large US…