Acquiring Vocabulary through Reading: Effects of Frequency and Contextual Richness

TLDR

L2 vocabulary acquisition research still grapples with how many exposures are required for learning and whether rich, informative contexts facilitate or hinder acquisition. The study examined Quebec school‑aged ESL learners across five proficiency levels who read a text, were tested on new vocabulary, and then had learned versus unlearned words compared for frequency and contextual support. Results showed that word‑frequency requirements varied with learner level, while contextual richness had no effect on acquisition.

Abstract

While L2 vocabulary acquisition research is no longer ‘a neglected area’ (Meara, 1980), a lack of progress remains on some basic questions. One concerns the number of times a word must be encountered in order to be learned. Even using similar learning criteria, estimates range from six (Saragi, Nation, & Meister, 1978) to 20 (Herman, Anderson, Pearson, & Nagy, 1987). Another question concerns the types of contexts that are conducive to learning. Some studies have reported that rich, informative contexts are the most conducive to acquisition (Schouten-van Parreren, 1989), others that rich contexts divert attention from the lexical level and produce little acquisition (Mondria & Wit-De Boer, 1991). These phenomena were investigated in a vocabulary acquisition study with Quebec school-aged ESL learners at five levels of proficiency. First, learners read a text and were tested on its new vocabulary. Then, learned and unlearned words were compared for frequency of occurrence and level of contextual support. Frequency needs were found to be related to learner level, and contextual richness was unrelated to learning.