An “Author Fluency Task”: Semantic fluency as predictor of L2 vocabulary knowledge

Reading experience provides critical input for language learning. This is typically quantified via estimates of print exposure, such as the Author Recognition Test (ART), although it may be unreliable in L2. This study introduces the Author Fluency Task (AFT) as an alternative measure, comparing with ART for assessing knowledge of English discourse connectives and collocations among 60 bilingual French/English speakers, and a comparison sample of 60 L1 English speakers. Participants completed AFT, ART, and LexTALE in both languages. Analysis of L2 measures showed AFT more accurately predicted L2 vocabulary knowledge than ART, even when controlling for proficiency (LexTALE). Conversely, ART was more effective for L1 speakers, showing a striking dissociation between the measures between language groups. Additionally, data showed a limited role for L1 proficiency and print exposure on advanced L2 vocabulary acquisition. These findings recommend AFT as a valuable tool for quantifying L2 print exposure's role in language learning.