Aptitude, phonological memory, and second language proficiency in nonnovice adult learners

This study explores the relationship between aptitude, phonological memory (PM), and second language (L2) proficiency in nonnovice adult learners of English as an L2. Native speakers of French (N = 77) enrolled in a university Teaching English as a Second Language program were the participants in the study. Exploratory factor analysis revealed three main factors corresponding to the variables examined: L2 proficiency, aptitude, and PM. Multiple regression analyses revealed aptitude subtests and PM together predicted 29% of the variance in L2 proficiency. Additional regression analyses carried out on lower and higher proficiency subgroups, created by a median split on proficiency scores, revealed that none of the variables predicted L2 proficiency in the higher proficiency subgroup. PM remained as a significant predictor for the lower proficiency subgroup, extending the pattern of results found elsewhere in younger populations to adult nonnovice L2 learners.