Age-Related Changes in Speech Recognition Performance in Spanish-English Bilinguals' First and Second Languages.

Purpose The purposes of the current study were to examine the effect of age on Spanish-English bilinguals' speech recognition performance and to identify differences in speech recognition performance between Spanish and English bilinguals' 1st and 2nd languages. Method Fifteen younger adult Spanish-English bilinguals, 15 older adult Spanish-English bilinguals, 15 younger adult English monolinguals, and 15 older adult English monolinguals participated in this study. Bilingual participants had learned Spanish from birth and began learning English by the age of 4 years ( SD = 2.