For many teachers and administrators, the degree to which attrition over summer vacation represents a threat to instructed language acquisition remains unclear. In a previous study, Kramer et al. (2019) looked at receptive vocabulary knowledge attrition over summer vacation, found no evidence of attrition using these measures, and called for…

A strong relationship between L2 vocabulary knowledge and L2 reading and listening comprehension is well established. However, less research has been conducted to explore correlations between pedagogic interventions to increase vocabulary knowledge and score gains on standardized L2 proficiency tests. This study addresses this gap in the research…