We examined to what extent the variation in vocabulary learning outcomes (vocabulary knowledge, learning gain, and rate of forgetting) in English as a second language (L2) in context can be predicted from semantic contextual support, word characteristics (cognate status, Levenshtein distance, word frequency, and word length), and student characteristics (prior vocabulary knowledge, reading ability, and exposure to English) in 197 Dutch adolescents. Students were taught cognates, false friends, and control words through judging sentences with varying degrees of semantic contextual support using a pretest/posttest between subjects design. Participants were presented with an English target word and its Dutch translation, followed by an English sentence. They were instructed to judge the plausibility of the sentence. Mixed-efffects models indicated that learning gains were higher for sentences with more semantic contextual support and in students with stronger reading comprehension skills. We were the first to show that Levenshtein distance is an important predictor for L2 vocabulary learning outcomes. Furthermore, more accurate as well as faster learning task performance lead to higher learning outcomes. It can thus be concluded that L2 study materials containing semantically supportive contexts and that focus on words with little L1-L2 overlap are most effective for L2 vocabulary learning.

In the domain of bilingualism, a main issue of interest has been to determine whether the two languages are shared at a conceptual level and which variables modulate the access to the conceptual system. In this study, we focused on the effects of two variables related to word-type. We tested proficient unbalanced Spanish–English bilinguals in a masked translation priming paradigm conducted in the two translation directions (L1 to L2, and L2 to L1), by orthogonally manipulating for the first time concreteness and cognate status. The stimulus onset asynchrony (SOA) was also manipulated (50 ms vs 100 ms). Results revealed modulations in masked priming effects as a function of cognate status and translation direction. However, the effect of concreteness was only observed at the long SOA. The findings are discussed in light of the most relevant models of bilingual memory, mainly the Distributed Feature Model (de Groot, 1992a).

This study explores the role of cognate status, syllable position, and word length in Tip-of-the-Tongue (TOT) states induction and resolution for European Portuguese (EP; L1) – English (L2) bilinguals (and EP monolinguals as control). TOTs were induced using a picture naming task in L1 and L2 followed by a lexical decision task. Here, the first or the last syllable of the target word (or none for control) was embedded in pseudowords (syllabic pseudohomophones) in order to test its effect in TOT resolution. Bilinguals presented more TOTs in L2 than in L1, especially for noncognate words. Longer words showed more TOTs than shorter words, though only in L1. TOT resolution was higher for cognates in L2 and higher when primed by the first than by the last syllable. Finally, longer cognates showed more TOT resolution than shorter cognates, irrespective of the language. Results are discussed in light of TOT's main hypothesis.

When participants are asked to translate an ambiguous word, they are slower and less accurate than in the case of single-translation words (e.g., Láxen & Lavour, 2010; Tokowicz & Kroll, 2007). We report an experiment to further examine this multiple-translation effect by investigating the influence of variables shown to be relevant in bilingual processing. The experiment included cognates and non-cognates with one translation or with multiple translations. The latter were presented with their dominant or subordinate translations. Highly-proficient balanced bilinguals responded to a translation recognition task in the two language directions (Catalan–Spanish and Spanish–Catalan). The results showed a significant multiple-translation effect in both cognates and non-cognates. Moreover, this effect was obtained regardless of language dominance and translation direction. Participants were faster and more accurate when performing translation recognition for the dominant than for the subordinate translations. The findings are interpreted adopting the Distributed Representation Model (de Groot, 1992b).