The acquisition of quantifiers is a central topic in cognitive science. The present study investigated the emergence, frequency, and non-target-like production of the universal quantifiers "all," "every," and "each" in child English from a linguistic perspective, based on the data from longitudinal naturalistic…

Knowledge of English affixes plays a significant role in increasing knowledge of words. However, few attempts have been made to create a valid and reliable measure of affix knowledge. The Word Part Levels Test (WPLT) was developed to measure three aspects of affix knowledge: form (recognition of written affix forms), meaning (knowledge of affix…

Most studies in the second language (L2) literature that deal with interface issues do so in holistic terms. On the one hand, researchers have suggested that interface relations between the syntax and other domains are particularly difficult for adult L2 learners. On the other, it has been argued that such relations can be established in a…