3K-LEx-MC The creation and validation of a multiple-choice vocabulary placement test for Spanish language learners

This study presents the development and validation of a 132-item Spanish-English bilingual multiple-choice vocabulary test based on the 3,000 most frequent lemmas that distinguishes between North American university students who satisfy the Foreign Language requirement and those who need to complete coursework. 819 students were assigned to one of the two 144-item forms of the preliminary test, which had 72 shared anchor items and other 72 form-specific items. Factor analysis was used to evaluate dimensionality and the Rasch model was used to select the items that best differentiated between these two student populations. This final form was administered to 213 students. Results showed high levels of unidimensionality, and the final form provided a Rasch reliability coefficient of 0.97.