The efficacy of multi-faceted lexical instruction should be assessed due to the fact that the linguistic threshold hypothesis posits that to listen in a L2 one must first achieve a level of L2 linguistic ability, particularly vocabulary knowledge (Mecartty, 2000). In the same vein, Stahr (2009) contends that one major contributor to successful listening comprehension might be vocabulary size. Bonk (2000) determined that participants who recognized fewer than 80% of the different lexical words (nouns, verbs, adjectives, and adverbs) in the input