The research at hand compared two conditions of L2 vocabulary exposures, i.e. incidental exposure and a mixture of incidental and explicit exposures to words. Forty-five female participants, majoring in English at Al-Imam Mohammad Ibn-Saud Islamic University, Saudi Arabia participated in this research. They were divided into two groups: Reading Only (RO) and Reading Extra (RE). In the RO group, the target words were exposed only through a reading passage that they read twice, while the same

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... et words for the RE group were inserted in the same reading passage, then explained directly by the teacher. Three levels of vocabulary knowledge (form recall, meaning recall, and meaning recognition) were assessed. The results showed that both conditions cater for vocabulary learning, however the RE group had significantly outperformed their RO counterparts. Moreover, the results showed that vocabulary learning in this study followed the general tendency starting from a receptive level to a productive level.