Individual factors Biological factors of an individual can affect their own L2 acquisition. Underdevelopment of any of the biological systems, or damage or disruptions to the systems can and will impede the acquisition process of a language, be it L1 or L2. These systems include the cognitive, sensory, social, emotional, and neurobiological systems. These systems not only play a critical independent role on language acquisition, they also interact with each other to contribute to the person's ability towards language learning.
Affective factors The learner's emotional state or affect can interfere with acquiring a new language because acquiring a new language inevitably involves practicing it in public and conversing with others. All these encompassed the possibility of making mistakes, resulting in embarrassment, and such anxiety can block the ability to receive and process new information. Thus, high self-consciousness and a reluctance to reveal their weaknesses and faults, coupled with feelings of vulnerability could greatly impede second language learning. Fear of embarrassment has been found to occur more in adults than children because adults are more self-conscious about speaking, making errors and are more easily demoralized by pronunciation difficulties.
Age of onset Linguists generally agree that age of onset has an effect on L2 proficiency and performance, as children who are exposed to a second language earlier tend to fare better on performance tests later in life. Additionally, the notion of the
Critical Period Hypothesis in the context of language acquisition suggests that there is a sensitive time period in early childhood during which L2 can be learned easily and quickly. While it may vary in individual children, this window of opportunity is considered to be between the ages of 2 and puberty. However, there is contention on whether the critical period for language truly exists.
Motivation L2 acquisition is affected by one's motivation to learn and use/communicate with that language Motivation is determined by the interaction between environmental needs and opportunities as well as personal preferences, which is dependent on social contexts. There are generally two types of motivation: Integrative Motivation and Instrumental Motivation. It is assumed that language acquisition is most successful when one learns a language because one truly liked the language and culture and possessed a desire to integrate into the culture in which the language is used. This form of motivation is known as integrative (or
intrinsic) motivation. Developing a certain level of proficiency in the language becomes necessary because the community which one wants to immerse oneself into uses the target language in its social interactions. Thus, in order to operate socially in the community and become one of its members, one has to be sufficiently proficient in that target language. In contrast, Instrumental (or
extrinsic) motivation is the opposite. People who are instrumentally motivated to learn a language acquires that language because they want to benefit from that language, like gaining something practical or concrete. There is a practical purpose for acquiring an L2, such as meeting the requirements for school or university graduation, applying for a job, requesting higher pay based on language ability, or even achieving higher social status. Here, there is little or no desire for social integration of the learner into a community. While both integrative and instrumental motivation are essential elements of successful language acquisition, research have determined integrative motivation as the main element in long-term success sustenance when learning a second language. For communication purposes, which language a bilingual chooses to speak, motive may interact with both the listener's identity and the environmental context—one language may be preferred to communicate with a parent or child, another to complete a business transaction. The social status or prestige associated with a language could also motivate one to use that specific language. For example, United States being a political and economic powerhouse, the motivation to learn and acquire English is huge. Young immigrants in this country are spurred to learn English as fast as possible, mostly within a single generation, and many third-generation immigrants speak only English, with little or no ability in the language of their grandparents.
L1 interference L1 interference in bilingual language acquisition generally refers to the influence that the learner's L1 exerts over the acquisition of an L2. Habits have been formed during L1 acquisition will influence the L2 learning process, either facilitate or hinder L2 learning. The more similar L1 is with L2, the greater ease learners have with learning the L2 structures. In contrast, areas where L1 and L2 differ, the learners face much difficulty in learning because learners would use their L1 knowledge and experience to guide their L2 learning and responses.
Emotional intensity Various studies have found that for bilinguals, the emotional intensity of L1 is different from the emotional intensity of subsequent languages learned. These studies concluded that L1 has the highest emotional impact and is the language of personal involvement while L2 is the language that can create distance and detachment as it has lesser emotional impact as compared to L1. Yet, paradoxically, many late bilinguals indicate that it is harder for them to swear in their L1 as compared to their L2. As such they would prefer to use their L2 to swear despite it having lesser emotional impact on the speakers themselves. This could be due to the fact that they are unable to feel the total strength of their spoken words when swearing in their L2 and as such, they would swear in their L2 more easily.
Social factors Availability of opportunities Here, opportunities are social factors that lead to the availability of situations for the use of the acquired L2. Increased chances to use a language greatly improve one's ability in that language. For example, the environment must first present access to that language. Then, there must be a need for using the language as a form of communication, which will thus force and motivate the learner to consistently speak in that language. In addition, opportunities for language use should come in diverse forms, like spoken or written, and in various contexts, like in school, at home or during peer interaction, so that the child would learn how to adapt to and apply the language appropriately in different situations, using mediums, with different people. Also, low
socioeconomic status is another obstacle because even if the family supports L2 learning, they might not have sufficient income to provide the adequate resources and help required for learning an L2. Parents are financially incapable of enrolling their children in language classes, neither are they able to afford textbooks, reading and practice materials for their children to learn and practice. All these are possible factors acting as L2 acquisition barriers.
Pedagogical factors Second language acquisition can be attained in both naturalistic settings and classroom settings. Compared to naturalistic settings, classroom settings enable second language learners to focus on linguistic forms and metalinguistic knowledge. At present, for bilinguals, second language acquisition happens mostly in classroom settings.
Does formal instruction aid the rate and path of SLA? Based on our own language learning experience, we intuitively believe that formal instruction helps bilinguals develop higher level of language literacy and proficiency. However, various studies, including cross-sectional and longitudinal studies, prove that formal instruction makes no difference to the path of SLA and rules of language are acquired in a predictable order. The order of formal instruction on morphemes is not correlated with the natural order of acquisition. It is pointed out by longitudinal studies that the deviation away from natural order is temporary. And informal instruction shows its interference only in test-like situations, but not in communicative contexts. The impact of formal instruction on rate of SLA is controversial. Though learners adopting formal instruction have better performance on discrete-point tests, no evidence backs the absolute positive effect of formal instruction. proposes that "learned" knowledge obtained through explicit learning is distinct from "acquired" knowledge gained through
implicit learning, and knowledge gained by one route cannot be converted into the other type of knowledge. Formal instruction only increases learners’ learned knowledge, but makes no contribution to acquisition. However, teachers’ input and interaction, which indirectly offers comprehensible input, is of real value. The interaction in the classroom settings also facilitates acquisition by exposing students to language in a communicative context.
How does formal instruction affect SLA? Based on the argument above, we know that the efficiency of second language acquisition is based on whether the classroom is an acquisition-rich or acquisition-poor environment. Newmark (cited in Ellis, 1994) pointed out that instructors of foreign language classes should stop interfering with the learning process and propose that classroom instruction would be successful if the environment is naturalistic. However, classroom settings and naturalistic settings inevitably differ in the following aspects, which may or may not be helpful for second language acquisition.
Input The classroom environment offers input that is adjusted to learners’ needs. Instructors can decrease their speaking rate and simplify their word use and sentence structures. According to the
input hypothesis by Krashen, interaction facilitates meaning negotiation via clarification, confirmation, repetition and comprehension checks, etc. Interactions between teachers and students would also bridge support, which weakens learners’ affective filter and may result in better learning.
Teachers' questions Teachers' questions push learners to interact and simulate real communication in an artificial context. Feedback from students’ performance enables instructors to control the progress and adjust following instructions. In addition, referential questions, compared to display questions, provide students with more opportunities to produce extensive output and boost their acquisition.
Topic control Based on empirical teaching and learning experience, topics chosen by learners rather than teachers would motivate learners better and further spark extensive production. Secondly, topic selection ensures that the complexity of the input is under control and is adapted to learners’ language competence.
Implications for classroom teaching As Corder (1976, cited in Ellis, 1992) proposed, “Efficient foreign language teaching must work with rather than against natural process, facilitate rather than impede learning. Teachers and teaching materials must adapt to the learner rather than vice-versa.” Ellis proposes several general suggestions to offer an acquisition-rich communicative environment. • Teachers’ talk needs to be simplified to generate more comprehensible input for learners. • Interactions are encouraged. During this process, learners gain opportunities to construct and observe their discourse. • Learners are encouraged to output extensive responses. • Learners can choose their topics. • Second language use is not restricted to classroom settings. ==See also==