In this study we examined the level of English proficiency children can obtain through out-of-school exposure in informal contexts prior to English classroom instruction. The second aim was to determine the input types that fuel children's informal language acquisition. Language learning was investigated in 780 Dutch-speaking children (aged 10–12), who were tested on their English receptive vocabulary knowledge, listening, speaking, reading and writing skills. Information about learner characteristics and out-of-school English exposure was gathered using questionnaires. The results show large language gains for a substantial number of children but also considerable individual differences. The most beneficial types of input were gaming, use of social media and speaking. These input types are interactive and multimodal and they involve language production. We also found that the various language tests largely measure the same proficiency component.

In this paper the incidental language acquisition of 11-year-old Flemish children (n = 30) who have not received any formal English instruction is investigated. The study looks into children's English proficiency and the learner characteristics that can be associated with it. In order to measure the children's English proficiency, a receptive vocabulary test and a proficiency test (which measured listening skills, speaking skills, reading skills and writing skills) were used. Information about learner characteristics was gathered through two questionnaires (for children and parents). The results show that a significant proportion of the 11-year-olds can already perform tasks at the A2 level (The Common European Framework of Reference for Languages) without having had any formal instruction. The study confirms that children learn English from the input they receive through different media (especially gaming and computer use). Furthermore, the data reveal a strikingly positive attitude towards English and demonstrate that in some situations Flemish children prefer using English over their L1 with their peers.

This study aimed to investigate which word-related variables play a role in Dutchspeaking children's L2 word learning through out-of-school exposure prior to classroom instruction in the foreign language. We used different measures to investigate the role of frequency, concreteness, cognateness, and age of acquisition (AoA) in receptive vocabulary learning. The results showed that cognateness and L1 AoA were important predictors of receptive word knowledge for all the participants. The findings confirmed that cognateness is important in vocabulary learning and that less proficient learners tend to guess the meaning of words based on their L1. The results also showed significant interactions between proficiency and cognateness, frequency, AoA, and concreteness, indicating that more proficient L2 learners are open to L2-related variables such as L2 word frequency. This indicates that word-related variables contribute in different ways according to learners' proficiency levels. This research was supported by Artevelde University College Ghent in the context of the PWOproject (Practice-based Scientific Research project) False Beginners. We thank Geert De Meyer, Philip O'Neill, and our students and colleagues for help with testing. We thank the schools, the teachers, the pupils, and their parents for participating in the project. We thank the anonymous reviewers and the associate editor, Scott Crossley, for their suggestions and comments on previous versions of this manuscript.