The purpose of the model and the research were explained to the students, and they were informed that they were to express their opinion regarding their understanding of the meaning of the items and the items' clarity.
Los estudiantes fueron esclarecidos sobre la finalidad del modelo y sobre la investigación, siendo informados que deberían expresar su opinión sobre la comprensión del significado y claridad de los ítems.
Os estudantes foram esclarecidos sobre a finalidade do modelo e sobre a pesquisa, sendo informados que deveriam expressar sua opinião quanto à compreensão do significado e clareza dos itens.