On the Validity and Reliability of the Autonomic Lability Score

摘要

The reliability and validity of the difference score are shown to be greater than, equal to, or less than that of the autonomic lability score depending primarily on whether Wilder's Law of Initial Value holds. Various measures of change such as percent gain, crossover point, slope, etc., are shown to be optimal measures for given situations. The blanket use of the autonomic lability score is questioned and flexible procedures for computing measures of change are recommended. (Author)