Reliability, accuracy and bias in survey estimates in tourism surveys.
Reliability, accuracy and bias in survey estimates in tourism surveys.
复制标题
旅游调查中调查估计的可靠性、准确性和偏差。
作者：
J. Beaman;J. Vaske
可靠性、准确性和偏差是常见的概念，有时会被误解和使用不当。本文(1)阐明了基于可观察行为（EBOB）的估计(e)的可靠性、准确性和偏差之间的区别，(2)说明了识别其中偏差的重要性。所考虑的估计数包括分类比例和总数或数字/数额平均数。对大型专业设计和运行的调查给出了估计偏差的例子。本文认为，在旅游规划和管理决策中使用可靠性时，不应将可靠性视为准确性，而应充分接近其正确值。
Reliability, accuracy, and bias are common concepts that are sometimes misunderstood and used inappropriately. This note (1) clarifies the distinctions between reliability, accuracy and bias for Estimates (e) Based on Observable Behaviors (EBOB), and (2) illustrates the importance of recognizing bias in them. Estimates considered include proportions in categories and totals or means of numbers/ amounts. Examples of estimate bias for large professionally designed and run surveys are presented. It is argued that, rather than treating reliability as accuracy, an estimate being adequately close to its correct value should be an important consideration in using it in tourism planning and management decision making.