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60-548: WCRF UK funds scientific research into how diet, physical activity and weight affect cancer risk and also funds health information programmes to raise awareness so people can reduce their cancer risk by eating a healthy diet, being physically active and maintaining a healthy weight. WCRF UK is a cancer prevention charity that was founded in 1990. WCFT UK is an active member of the World Cancer Research Fund International network. WCRF UK creates awareness of

120-451: A novice (known colloquially as a newbie or 'greenhorn') is any person that is new to any science or field of study or activity or social cause and who is undergoing training in order to meet normal requirements of being regarded a mature and equal participant. "Expert" is also being mistakenly interchanged with the term " authority " in new media. An expert can be an authority if through relationships to people and technology, that expert

180-658: A companion document to the Second Expert Report. It included 48 recommendations for changes that different groups in society can make to help prevent cancer. It also included a preventability study that estimated that a third of the most common cancers in the UK could be prevented through diet, physical activity and weight management. In 2018, the World Cancer Research Fund International published its Third Expert Report which concluded that diet, nutrition, obesity and low physical activity are modifiable risk factors for cancer. The report

240-456: A critique of the expert systems literature, Dreyfus & Dreyfus suggest: If one asks an expert for the rules he or she is using, one will, in effect, force the expert to regress to the level of a beginner and state the rules learned in school. Thus, instead of using rules he or she no longer remembers, as the knowledge engineers suppose, the expert is forced to remember rules he or she no longer uses. ... No amount of rules and facts can capture

300-446: A discussion by fiat. In other words, the community, rather than single individuals, direct the course of discussion. The production of knowledge, then, as a process of dialogue and argumentation, becomes an inherently rhetorical activity. Hartelius calls attention to two competing norm systems of expertise: “network norms of dialogic collaboration” and “deferential norms of socially sanctioned professionalism”; Misplaced Pages being evidence of

360-440: A disease correctly; etc. The word expertise is used to refer also to expert determination , where an expert is invited to decide a disputed issue. The decision may be binding or advisory, according to the agreement between the parties in dispute. There are two academic approaches to the understanding and study of expertise. The first understands expertise as an emergent property of communities of practice . In this view expertise

420-467: A function of its knowledge production. Going over the historical development of the encyclopedic project, Hartelius argues that changes in traditional encyclopedias have led to changes in traditional expertise. Misplaced Pages's use of hyperlinks to connect one topic to another depends on, and develops, electronic interactivity meaning that Misplaced Pages's way of knowing is dialogic. Dialogic expertise then, emerges from multiple interactions between utterances within

480-454: A live event, which is continuously open to new additions and participants. Hartelius acknowledges that knowledge , experience , training , skill , and qualification are important dimensions of expertise but posits that the concept is more complex than sociologists and psychologists suggest. Arguing that expertise is rhetorical, then, Hartelius explains that expertise "is not simply about one person's skills being different from another's. It

540-414: A maximum of £250,000 for up to four years or for Seed grants for a maximum of £60,000 for two years. WCRF UK also works with Imperial College London on its Continuous Update Project. This is a process designed to keep the evidence on diet and cancer current as new evidence emerges. WCRF UK's Great Grub Club programme is aimed at four to seven-year-olds and their parents. According to its website, its aim

600-412: A middle grade of understanding is generally known as a technician and often employed to assist experts. A person may well be an expert in one field and a layperson in many other fields. The concepts of experts and expertise are debated within the field of epistemology under the general heading of expert knowledge. In contrast, the opposite of a specialist would be a generalist or polymath . The term

660-467: A model of learning in chess called MAPP (Memory-Aided Pattern Recognizer). Based on simulations, they estimated that about 50,000 chunks (units of memory) are necessary to become an expert, and hence the many years needed to reach this level. More recently, the CHREST model (Chunk Hierarchy and REtrieval STructures) has simulated in detail a number of phenomena in chess expertise (eye movements, performance in

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720-483: A newsletter aimed at health professionals. There is also a specific section for health professionals on the WCRF UK website. Expert report An expert report is a study written by one or more authorities that states findings and offers opinions . In law, expert reports are generated by expert witnesses offering their opinions on points of controversy in a legal case and are typically sponsored by one side or

780-581: A problem, or clarify uncertainties where normally one or more human experts would need to be consulted) typically is grounded on the premise that expertise is based on acquired repertoires of rules and frameworks for decision making which can be elicited as the basis for computer supported judgment and decision-making. However, there is increasing evidence that expertise does not work in this fashion. Rather, experts recognize situations based on experience of many prior situations. They are in consequence able to make rapid decisions in complex and dynamic situations. In

840-457: A quality of a group rather than an individual. With the information traditionally associated with individual experts now stored within a text produced by a collective, knowing about something is less important than knowing how to find something. As he puts it, "With the internet, the historical power of subject matter expertise is eroded: the archival nature of the Web means that what and how to information

900-610: A similar token, a fear of experts can arise from fear of an intellectual elite's power. In earlier periods of history, simply being able to read made one part of an intellectual elite. The introduction of the printing press in Europe during the fifteenth century and the diffusion of printed matter contributed to higher literacy rates and wider access to the once-rarefied knowledge of academia. The subsequent spread of education and learning changed society, and initiated an era of widespread education whose elite would now instead be those who produced

960-528: A specific field, an expert has: Marie-Line Germain developed a psychometric measure of perception of employee expertise called the Generalized Expertise Measure. She defined a behavioral dimension in experts, in addition to the dimensions suggested by Swanson and Holton. Her 16-item scale contains objective expertise items and subjective expertise items. Objective items were named Evidence-Based items. Subjective items (the remaining 11 items from

1020-433: A variety of memory tasks, development from novice to expert) and in other domains. An important feature of expert performance seems to be the way in which experts are able to rapidly retrieve complex configurations of information from long-term memory. They recognize situations because they have meaning. It is perhaps this central concern with meaning and how it attaches to situations which provides an important link between

1080-412: Is allowed to control access to his expertise. However, a person who merely wields authority is not by right an expert. In new media, users are being misled by the term "authority". Many sites and search engines such as Google and Technorati use the term "authority" to denote the link value and traffic to a particular topic. However, this authority only measures populist information. It in no way assures that

1140-503: Is also fundamentally contingent on a struggle for ownership and legitimacy." Effective communication is an inherent element in expertise in the same style as knowledge is. Rather than leaving each other out, substance and communicative style are complementary. Hartelius further suggests that Misplaced Pages's dialogic construction of expertise illustrates both the instrumental and the constitutive dimensions of rhetoric; instrumentally as it challenges traditional encyclopedias and constitutively as

1200-471: Is no better than that of novices. The first principle of skilled memory, the meaningful encoding principle, states that experts exploit prior knowledge to durably encode information needed to perform a familiar task successfully. Experts form more elaborate and accessible memory representations than novices. The elaborate semantic memory network creates meaningful memory codes that create multiple potential cues and avenues for retrieval. The second principle,

1260-434: Is readily available." The rhetorical authority previously afforded to subject matter expertise, then, is given to those with the procedural knowledge of how to find information called for by a situation. An expert differs from the specialist in that a specialist has to be able to solve a problem and an expert has to know its solution . The opposite of an expert is generally known as a layperson, while someone who occupies

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1320-616: Is socially constructed; tools for thinking and scripts for action are jointly constructed within social groups enabling that group jointly to define and acquire expertise in some domain. In the second view, expertise is a characteristic of individuals and is a consequence of the human capacity for extensive adaptation to physical and social environments. Many accounts of the development of expertise emphasize that it comes about through long periods of deliberate practice. In many domains of expertise estimates of 10 years' experience deliberate practice are common. Recent research on expertise emphasizes

1380-492: Is someone widely recognized as a reliable source of technique or skill whose faculty for judging or deciding rightly, justly, or wisely is accorded authority and status by peers or the public in a specific well-distinguished domain. An expert, more generally, is a person with extensive knowledge or ability based on research, experience, or occupation and in a particular area of study. Experts are called in for advice on their respective subject, but they do not always agree on

1440-620: Is to encourage healthy eating and an active lifestyle in a fun and informative way. WCRF UK produces publications that aim to translate scientific research into language that is easy to understand, providing information about the links between lifestyle and cancer and advice on how to make healthy changes. A newsletter for supporters is published four times a year that includes information about scientific findings and gives practical advice about making healthy lifestyle changes. WCRF UK provides information for health professionals to help them educate their patients. This includes publishing Informed,

1500-417: Is widely used informally, with people being described as 'experts' in order to bolster the relative value of their opinion, when no objective criteria for their expertise is available. The term crank is likewise used to disparage opinions. Academic elitism arises when experts become convinced that only their opinion is useful, sometimes on matters beyond their personal expertise. In contrast to an expert,

1560-429: The discourse community . The ongoing dialogue between contributors on Misplaced Pages not only results in the emergence of truth; it also explicates the topics one can be an expert of. As Hartelius explains, "the very act of presenting information about topics that are not included in traditional encyclopedias is a construction of new expertise." While Misplaced Pages insists that contributors must only publish preexisting knowledge,

1620-423: The expert review method) identifies potential problems that could affect data quality and data collection by evaluating survey questionnaires and survey translations . Experts An expert is somebody who has a broad and deep understanding and competence in terms of knowledge , skill and experience through practice and education in a particular field or area of study. Informally, an expert

1680-410: The retrieval structure principle states that experts develop memory mechanisms called retrieval structures to facilitate the retrieval of information stored in long-term memory. These mechanisms operate in a fashion consistent with the meaningful encoding principle to provide cues that can later be regenerated to retrieve the stored information efficiently without a lengthy search. The third principle,

1740-558: The speed up principle states that long-term memory encoding and retrieval operations speed up with practice, so that their speed and accuracy approach the speed and accuracy of short-term memory storage and retrieval. Examples of skilled memory research described in the Ericsson and Stasewski study include: Much of the research regarding expertise involves the studies of how experts and novices differ in solving problems. Mathematics and physics are common domains for these studies. One of

1800-540: The Prevention of Cancer: a Global perspective was published in 1997 and examined all the available evidence on the links between cancer and diet. In November 2007, the WCRF global network published Food, Nutrition, Physical Activity and the Prevention of Cancer: a Global Perspective . Also known as the Second Expert Report. Following an initial sweep of half a million research studies eventually, 7,000 were deemed relevant and met

1860-470: The author of that site or blog is an expert. An expert is not to be confused with a professional . A professional is someone who gets paid to do something. An amateur is the opposite of a professional, not the opposite of an expert. Some characteristics of the development of an expert have been found to include Mark Twain defined an expert as "an ordinary fellow from another town". Will Rogers described an expert as "A man fifty miles from home with

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1920-545: The challenges that projects such as Misplaced Pages pose to how experts have traditionally constructed their authority. In "Misplaced Pages and the Emergence of Dialogic Expertise", she highlights Misplaced Pages as an example of the "dialogic expertise" made possible by collaborative digital spaces. Predicated upon the notion that "truth emerges from dialogue", Misplaced Pages challenges traditional expertise both because anyone can edit it and because no single person, regardless of their credentials, can end

1980-454: The deference of the audience's judgment and can appeal to authority where a non-expert cannot. In The Rhetoric of Expertise, E. Johanna Hartelius defines two basic modes of expertise: autonomous and attributed expertise. While an autonomous expert can "possess expert knowledge without recognition from other people," attributed expertise is "a performance that may or may not indicate genuine knowledge." With these two categories, Hartelius isolates

2040-407: The domain of their expertise and thereby circumvent the capacity limitations that typically constrain novice performance. For example, it explains experts' ability to recall large amounts of material displayed for only brief study intervals, provided that the material comes from their domain of expertise. When unfamiliar material (not from their domain of expertise) is presented to experts, their recall

2100-496: The dynamics behind dialogic expertise creates new information nonetheless. Knowledge production is created as a function of dialogue. According to Hartelius, dialogic expertise has emerged on Misplaced Pages not only because of its interactive structure but also because of the site's hortative discourse which is not found in traditional encyclopedias. By Misplaced Pages's hortative discourse, Hartelius means various encouragements to edit certain topics and instructions on how to do so that appear on

2160-472: The factors that enable experts to be fast and accurate. Expertise characteristics, skills and knowledge of a person (that is, expert) or of a system, which distinguish experts from novices and less experienced people. In many domains there are objective measures of performance capable of distinguishing experts from novices: expert chess players will almost always win games against recreational chess players; expert medical specialists are more likely to diagnose

2220-411: The first. Drawing on a Bakhtinian framework, Hartelius posits that Misplaced Pages is an example of an epistemic network that is driven by the view that individuals' ideas clash with one another so as to generate expertise collaboratively. Hartelius compares Misplaced Pages's methodology of open-ended discussions of topics to that of Bakhtin's theory of speech communication , where genuine dialogue is considered

2280-490: The formalities and analysis methods of their particular area of expertise as a major guiding factor of student instruction and knowledge development, rather than being guided by student learning and developmental needs that are prevalent among novice learners. The blind spot metaphor refers to the physiological blind spot in human vision in which perceptions of surroundings and circumstances are strongly impacted by their expectations. Beginning practicing educators tend to overlook

2340-642: The importance of novice levels of prior knowledge and other factors involved in adjusting and adapting pedagogy for learner understanding. This expert blind spot is in part due to an assumption that novices' cognitive schemata are less elaborate, interconnected, and accessible than experts' and that their pedagogical reasoning skills are less well developed. Essential knowledge of subject matter for practicing educators consists of overlapping knowledge domains: subject matter knowledge and pedagogical content matter. Pedagogical content matter consists of an understanding of how to represent certain concepts in ways appropriate to

2400-465: The individual and social approaches to the development of expertise. Work on "Skilled Memory and Expertise" by Anders Ericsson and James J. Staszewski confronts the paradox of expertise and claims that people not only acquire content knowledge as they practice cognitive skills, they also develop mechanisms that enable them to use a large and familiar knowledge base efficiently. Work on expert systems (computer software designed to provide an answer to

2460-469: The knowledge an expert has when he or she has stored experience of the actual outcomes of tens of thousands of situations. The role of long-term memory in the skilled memory effect was first articulated by Chase and Simon in their classic studies of chess expertise. They asserted that organized patterns of information stored in long-term memory (chunks) mediated experts' rapid encoding and superior retention. Their study revealed that all subjects retrieved about

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2520-514: The layman to disregard the opinion of the experts on account of the unknown. Instead, the complete opposite occurs whereby members of the public believe in and highly value the opinion of medical professionals or of scientific discoveries, despite not understanding it. A number of computational models have been developed in cognitive science to explain the development from novice to expert. In particular, Herbert A. Simon and Kevin Gilmartin proposed

2580-417: The learner contexts, including abilities and interests. The expert blind spot is a pedagogical phenomenon that is typically overcome through educators' experience with instructing learners over time. In line with the socially constructed view of expertise, expertise can also be understood as a form of power ; that is, experts have the ability to influence others as a result of their defined social status. By

2640-482: The links between food, physical activity and cancer”. Project Director of the report Professor Martin Wiseman said: “Our recommendations are based on the best science available. They are recommendations, not commandments. The whole point of them is to give people the information they need to make their everyday choices informed ones.” In February 2009, the WCRF global network published Policy and Action for Cancer Prevention,

2700-428: The main physics principle used to solve the problem). Their findings also suggest that while the schemas of both novices and experts are activated by the same features of a problem statement, the experts' schemas contain more procedural knowledge which aid in determining which principle to apply, and novices' schemas contain mostly declarative knowledge which do not aid in determining methods for solution. Relative to

2760-411: The measure below) were named Self-Enhancement items because of their behavioral component. Scholars in rhetoric have also turned their attention to the concept of the expert. Considered an appeal to ethos or "the personal character of the speaker", established expertise allows a speaker to make statements regarding special topics of which the audience may be ignorant. In other words, the expert enjoys

2820-453: The most cited works in this area examines how experts (PhD students in physics) and novices (undergraduate students that completed one semester of mechanics) categorize and represent physics problems. They found that novices sort problems into categories based upon surface features (e.g., keywords in the problem statement or visual configurations of the objects depicted). Experts, however, categorize problems based upon their deep structures (i.e.,

2880-586: The nurture side of the nature and nurture argument. Some factors not fitting the nature-nurture dichotomy are biological but not genetic, such as starting age, handedness, and season of birth. In the field of education there is a potential "expert blind spot" (see also Dunning–Kruger effect ) in newly practicing educators who are experts in their content area. This is based on the "expert blind spot hypothesis" researched by Mitchell Nathan and Andrew Petrosino. Newly practicing educators with advanced subject-area expertise of an educational content area tend to use

2940-421: The other in a litigation in order to support that party's claims. The reports state facts , discuss details, explain reasoning, and justify the experts' conclusions and opinions. In medicine, an expert report is a critical assessment of a medical topic, for example, an independent assessment of the cost–benefit ratio of a particular medical treatment . As part of survey pretesting , an expert report (using

3000-409: The particulars of a field of study. An expert can be believed, by virtue of credentials , training , education , profession , publication or experience, to have special knowledge of a subject beyond that of the average person, sufficient that others may officially (and legally ) rely upon the individual's opinion on that topic. Historically, an expert was referred to as a sage . The individual

3060-474: The quality criteria for definitive conclusions to be drawn about cancer prevention. A panel of 21 experts then made 10 recommendations for reducing cancer risk. The launch of the Second Expert Report was a big news story in the UK. The report was described by the New Scientist magazine as a “landmark in our understanding of diet and cancer” while The Economist said: “It is the most rigorous study so far on

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3120-419: The relationship between diet, physical activity, weight and cancer risk. It focuses on funding research into diet and cancer prevention and to consolidate and interpret global research to create practical messages on reducing risk of cancer. The World Cancer Research Fund International (global network) has published several expert reports with research from WCRF UK. The first expert report, Food, Nutrition and

3180-516: The rhetorical problems faced by experts: just as someone with autonomous expertise may not possess the skill to persuade people to hold their points of view, someone with merely attributed expertise may be persuasive but lack the actual knowledge pertaining to a given subject. The problem faced by audiences follows from the problem facing experts: when faced with competing claims of expertise, what resources do non-experts have to evaluate claims put before them? Hartelius and other scholars have also noted

3240-435: The rulers, Plato said, must tell the people of the city "the noble lie" to keep them passive and content, without the risk of upheaval and unrest. In contemporary society, doctors and scientists, for example, are considered to be experts in that they hold a body of dominant knowledge that is, on the whole, inaccessible to the layman. However, this inaccessibility and perhaps even mystery that surrounds expertise does not cause

3300-428: The same number of chunks, but the size of the chunks varied with subjects' prior experience. Experts' chunks contained more individual pieces than those of novices. This research did not investigate how experts find, distinguish, and retrieve the right chunks from the vast number they hold without a lengthy search of long-term memory. Skilled memory enables experts to rapidly encode, store, and retrieve information within

3360-426: The site. One further reason to the emergence of dialogic expertise on Misplaced Pages is the site's community pages , which function as a techne ; explicating Misplaced Pages's expert methodology. Building on Hartelius, Damien Pfister developed the concept of "networked expertise". Noting that Misplaced Pages employs a "many to many" rather than a "one to one" model of communication, he notes how expertise likewise shifts to become

3420-524: The use and training of sheep dogs and the care of sheep. Research in this area attempts to understand the relation between expert knowledge, skills and personal characteristics and exceptional performance. Some researchers have investigated the cognitive structures and processes of experts. The fundamental aim of this research is to describe what it is that experts know and how they use their knowledge to achieve performance that most people assume requires extreme or extraordinary ability. Studies have investigated

3480-403: The written content itself for consumption, in education and all other spheres. Plato's " Noble Lie ", concerns expertise. Plato did not believe most people were clever enough to look after their own and society's best interest, so the few clever people of the world needed to lead the rest of the flock. Therefore, the idea was born that only the elite should know the truth in its complete form and

3540-622: Was published on the behalf of WCRF UK, WCRF Netherlands and the American Institute for Cancer Research . WCRF UK is registered with the Charity Commission for England and Wales and around 95% of their funding comes from the UK public. WCRF UK spends about £6.2 million per year on scientific research, health policy and education programmes. WCRF International manages and administers the research programme on behalf of WCRF UK. UK researchers can apply for Investigator Initiated grants for

3600-440: Was usually a profound thinker distinguished for wisdom and sound judgment . In specific fields, the definition of expert is well established by consensus and therefore it is not always necessary for individuals to have a professional or academic qualification for them to be accepted as an expert. In this respect, a shepherd with fifty years of experience tending flocks would be widely recognized as having complete expertise in

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