Krashen, S. (1982). Principles and practice in second language acquisition. Oxford University Press.
An Evaluation of the Pimsleur Method for Learning European Portuguese pimsleur european portuguese
A study on the Pimsleur method for Spanish found that learners who used the method showed significant improvement in listening and speaking skills (Krashen, 1982). Another study on the method's effectiveness for French found that learners who used the method outperformed those who used traditional language instruction methods (Larsen-Freeman, 2007). Krashen, S