组内相关系数（Intraclass Correlation Coefficient, ICC）是一种用于衡量和评价观察者间信度和复测信度的信度系数指标。它最早由Bartko于1966年提出，用于测量和评价信度的大小。ICC的值介于0到1之间，0表示不可信，1表示完全可信。 ICC模型选择共涉及三个方面，分别为单向/双向、混合/随机、一致性/绝对一致性。除此之外，3种模型均会输出单一度量或者平均度量 ...

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The correlation of bitcoin BTC $70,628.29 and ether (ETH) to the U.S. Dollar Index (DXY) has once again turned negative. BTC’s correlation coefficient to the DXY has fallen to -0.36, after moving as ...