Introduction
Participants' demographic data were collected using the electronic Spanish-English and English-Spanish versions of Birdsong, et al.'s Bilingual Language Profile (BLP) (2012). The BLP surveys four distinct areas: language history, language use, language proficiency, and language attitudes. Once participants have completed the BLP, they are scored on their degree of bilingualism in the two languages. Scores range from -218 to 218.
Bilingual Language Profile
As expected, L1 Spanish-L2 English participants showed higher degrees of bilingualism in Spanish (195.6) than in English (80.72).
Reference
Birdsong, D., Gertken, L. M., & Amengual, M. (2012). Bilingual Language Profile: An Easy-to-Use Instrument to Assess Bilingualism. COERLL, The University of Texas at Austin. https://blp.coerll.utexas.edu.