In this short article I try to present a taxonomy of sources of difficulty, in particular complexity. I emphasize how these factors interact with each other and with individual differences and treatments, before illustrating some of these interactions and the methodological issues involved in studying them with examples from the empirical studies…

The traditional morpheme order studies in second language acquisition have tried to demonstrate the existence of a fixed order of acquisition of English morphemes, regardless of the second language learner's background. Such orders have been taken as evidence of the preprogrammed nature of language acquisition. This article argues for a…

This is the first collection of research studies to explore the potential for mixed methods to shed light on foreign or second language learning by young learners in instructed contexts. It brings together recent studies undertaken in Cameroon, China, Croatia, Ethiopia, France, Germany, Italy, Kenya, Mexico, Slovenia, Spain, Sweden, Tanzania and…

For decades educational psychologists have bemoaned the black box approach of much research on learning, that is, the focus on product rather than process, and the absence of fine-grained analysis of the learning process in the individual. One way that progress has been made on this point in the last couple of decades is through cognitive…

This article critically reviews strategy research on learning Chinese both as a second and foreign language. Through a careful examination of major data bases in both the Chinese and English languages, the article summarizes research in the field and the principal research methods used in the studies reviewed. Moreover, key limitations in research…

Criticism of much of the previous research into the syntax of children's language. (RD)

Discusses themes that relate to the connections between first- and second-language acquisition. Specific focus is on the following issues: whether there is a language instinct; what input could and does teach the child; rules and representations (i.e., how language resides in the individual); individual differences in language acquisition; and…

Several different methodological approaches that have been used in studying language in children with autism are outlined. In classic studies, children with autism are compared to comparison groups typically matched on age, IQ, or mental age in order to identify which aspects of language are uniquely impaired in autism. Several methodological…

A review of how second-language acquisition research accounts for individual differences focuses on research on aptitude, motivation, learning strategies, and learning styles and discusses such conceptual and methodological issues as data quantification, points of contact between variables, the multicausal nature of language learning, hypothesis…

Language-related attitudinal differences between two bilingual students at the University of Texas at El Paso are examined. The student designated "R" is found to exhibit language loyalty to both English and Spanish. Spanish is his language of choice chiefly when his conversational partner expects Spanish. Student "L" maintains…

Tested the hypothesis that individual differences in immediate-verbal-memory span predict success in second-language vocabulary acquisition. In the two-session study, adult subjects learned 56 English-Finnish translations. Tested one week later, subjects were less likely to remember those words they had difficulty learning, even though they had…