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…

Recent years have witnessed a strong and increasing interest in the incidental learning of second language grammar. While much of this research has focused on the acquisition of second language word order or noun-determiner systems, relatively fewer studies have examined the learning of second language morphology. Results of studies that have…

According to Vygotsky, we use tools both to shape and make sense of the world and to exercise control over others and over ourselves. Importantly, the very use of those tools to mediate and regulate our actions has developmental repercussions in our cognitive capabilities. From a sociocultural theory perspective on second language learning, these…