Who's the Best? A Relativistic View of Expertise

摘要: Summary The dictionary and the expert performance approach view an as one who, after sufficient training experience in a domain, can perform requisite tasks above threshold level. In contrast, we argue for performance-based that implies expertise is continuum; experts are best performers. Most which be demonstrated have underlying core of judgment, including domains call judgment to overlain with performance, prediction, or instruction. To evaluate employ metaphor judge measuring instrument. Like instrument, according has three key properties: discrimination, consistency, validity. Validity requires ground truth usually difficult establish; but other two properties readily observable, they combined Cochran–Weiss–Shanteau index. Copyright © 2014 John Wiley & Sons, Ltd.