This article reports on a study that combined two strands of research: studies of incidental vocabulary learning and studies of the classroom lexical environment (in which vocabulary exposure is measured and the potential for learning estimated). The study looked at the orthographic lexical environment in a language classroom over a semester and…

Students in academic contexts are expected to engage with large amounts of reading and they frequently meet unknown words and phrases in those reading materials. Previous research has shown that second and foreign language learners can acquire some of the unknown vocabulary that they encounter during reading. However, these previous findings were…

The involvement load hypothesis (ILH) was designed to predict the effectiveness of instructional tasks for incidental L2 vocabulary learning. In this meta-analysis we examined 398 effect sizes from 42 empirical studies (N = 4,628) to explore (a) the overall predictive ability of the ILH, (b) the relative effects of different components of the ILH…

Focus on form (FonF) studies have predominantly addressed its effectiveness in improving learners' syntactic, lexical, orthographic, and phonological knowledge. Extending the scope of this line of research to formulaic FonF practices, this study investigates the relative effectiveness of incidental FonF targeting formulaic versus nonformulaic…

This longitudinal study investigates the effect of mode of reading on the incidental learning of collocations and factors that affect learning. One hundred Vietnamese pre-intermediate learners of English as a foreign language (EFL) were assigned to either an experimental group or a control group (no treatment). In 9 weeks, the experimental group…

This study analyzed eTandem video-conferencing exchanges between five pairs of university students of English as a foreign language (EFL) and Spanish as a foreign language (SFL). The exchanges, which involved discussion of seven tasks, took place on a weekly basis. Drawing on an interactionist perspective (Ellis et al., 2001a; Loewen, 2005), the…

Academic lectures are potential sources of vocabulary learning for second language learners studying at universities where English is the medium of instruction, as well as those in English for Academic Purposes (EAP) programs. Topic-related vocabulary is likely to occur frequently in academic texts, and academic speech consists of a reasonable…

Ensuring second language (L2) learners have an adequate breadth and depth of L2 vocabulary knowledge is a key pedagogical objective in L2 learning contexts. For this reason, establishing guiding principles that successfully enhance the efficacy of L2 vocabulary knowledge development is of strong importance. The current study investigated the value…

Vocabulary is an essential factor in English language learning. The competency in vocabulary acquisition enables learners to develop their language skills, especially, reading skill. Presently, with the advent of technology, teaching media with visual aid is used worldwide for media-assisted language learning. The study aimed to develop, implement…

This study is the first to compare objective and subjective measures of explicit and implicit knowledge under learning from incidental exposure. An experiment was conducted, during which L1 English speakers were trained on a semiartificial language, "Japlish." A measure of explicit knowledge and a recently proposed measure of implicit…

The study investigated the effect of marginal glossing and frequency of occurrence on the incidental learning of six aspects of vocabulary knowledge through reading in the second language (L2) Chinese. Participants were 30 intermediate L2 Chinese learners in an American public university. The MACOVA tests indicated that the treatment group who…

The study examined the predictions of regulatory fit theory (Higgins, 2000) in relation to task-based incidental vocabulary learning. A total of 189 English as a second language learners completed a vocabulary pretest, a regulatory focus questionnaire, an integrated reading/writing task, and finally an unannounced vocabulary posttest. The…

Morphological analysis and incidental learning are two vocabulary learning strategies that language learners may use in order to acquire the meanings of new words. To date, however, few studies have compared the effectiveness of these two strategies. Hence, the current study was carried out to compare the effect of morphological analysis and…

The effects of song and elaboration were assessed on the acquisition and retention of lexical items by beginner learners of Italian. Lexical acquisition investigated through an incidental learning experiment based on the premise that growth in L2 vocabulary can be facilitated by subvocal rehearsal and elaborate processing of lexical items.…

In the field of second language acquisition (SLA), a large base of research has shown the great influence of L2 reading on L2 vocabulary acquisition. Nevertheless, researchers have also found that acquiring new vocabulary happens rather gradually and in small amounts. Without altering the incidental nature of vocabulary acquisition through…