2.2. Methodology
In order to elicit data on VLSs, a triangulation of methods was used: a) observing the
students in person in the classroom and outside the classroom while studying their
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academic texts, b) interviewing the students individually about their vocabulary
comprehension and vocabulary learning activities while studying their academic texts,
and c) using a questionnaire based on theoretical considerations of some previous
attempts to study VLSs, including that of Schmitt's, to identify VLSs types.