De Anda, StephanieMurthi, Kavya2022-10-042022-10-04https://hdl.handle.net/1794/27647Measurements of language proficiency (accuracy, reaction time) on a lexical decision task were compared and their association with self-rated proficiency, age of acquisition, and speed of word recognition were examined. The purpose of the study is to extend the available measures used with the LexTALE lexical decision task and investigate how different measures of proficiency are related to bilingual language history and speed of word recognition within and across languages. Results revealed significant cross-language association between RT in English and RT in Spanish, but no associations within language. Furthermore, RT on the LexTALE was correlated with speed of word recognition. These results indicate that accuracy and RT index separate aspects of language proficiency, and additional investigation is necessary to further develop the construct of language proficiency.en-USAll Rights Reserved.bilinguallanguage proficiencylexical decision taskreaction timeword recognitionElectronic Thesis or Dissertation