The dataset consists of second language learning data from 41 French learners of English (aged 11 to 12) at two time points. At Time 1, quantitative data were collected through a French vocabulary size test, a target vocabulary pre-test, and a phonological short-term memory test. At Time 2, quantitative eye-tracking data included average dwell time, average number of fixations, and average fixation duration for two types of Areas of Interest: one for non-verbal information and the other for verbal information. Additionally, quantitative test data were collected from a vocabulary post-test and a comprehension test.