Fluency

Fluency (also called volubility and eloquency) is the property of a person or of a system that delivers information quickly and with expertise. Fluency (also called volubility and eloquency) is the property of a person or of a system that delivers information quickly and with expertise. Language fluency is one of a variety of terms used to characterize or measure a person's language ability, often used in conjunction with accuracy and complexity. Although there are no widely agreed-upon definitions or measures of language fluency, someone is typically said to be fluent if their use of the language appears fluid, or natural, coherent, and easy as opposed to slow, halting use. In other words, fluency is often described as the ability to produce language on demand and be understood. Varying definitions of fluency characterize it by the language user’s automaticity, their speed and coherency of language use, or the length and rate of their speech output. Theories of automaticity postulate that more fluent language users can manage all of the components of language use without paying attention to each individual component of the act. In other words, fluency is achieved when one can access language knowledge and produce language unconsciously, or automatically. Theories that focus on speed or length and rate of speech typically expect fluent language users to produce language in real time without unusual pauses, false starts, or repetitions (recognizing that some presence of these elements are naturally part of speech). Fluency is sometimes considered to be a measure of performance rather than an indicator of more concrete language knowledge, and thus perception and understandability are often key ways that fluency is understood. Language fluency is sometimes contrasted with accuracy (or correctness of language use, especially grammatical correctness) and complexity (or a more encompassing knowledge of vocabulary and discourse strategies). Fluency, accuracy, and complexity are distinct but interrelated components of language acquisition and proficiency. There are four commonly discussed types of fluency: reading fluency, oral fluency, oral-reading fluency, and written or compositional fluency. These types of fluency are interrelated, but do not necessarily develop in tandem or linearly. One may develop fluency in certain type(s) and be less fluent or nonfluent in others.