Schneiderman Emet D, Willis Stephen M, Kowalski Charles J, Ten Have Thomas R
Department of Oral and Maxillofacial Surgery, Baylor College of Dentistry, Dallas, Texas 75246.
Department of Oral Biology, The University of Michigan, Ann Arbor, Michigan 48109.
Am J Hum Biol. 1992;4(3):399-401. doi: 10.1002/ajhb.1310040316.
A method for computing a measure of tracking based on Cohen's kappa statistic for one-sample longitudinal data sets was previously described and implemented. This paper shows how one may test the equality of several kappas, each computed from an independent longitudinal sample. Thus, it is possible to formally compare groups of individuals with regard to stability in growth (or adaptive) patterns. Relative assessments of predictability in growth outcomes in different populations can be made with this approach. Also, when a common value of kappa is not contradicted by the data, a method to estimate this value and obtain a confidence interval for it is shown. A menu-driven GAUSS program for carrying out the procedure is described and made available. The method and program are illustrated with three samples of Guatemalan children. © 1992 Wiley-Liss, Inc.
之前已经描述并实现了一种基于科恩卡方统计量来计算单样本纵向数据集追踪度量的方法。本文展示了如何检验从独立纵向样本计算得出的几个卡方值的相等性。因此，就生长（或适应性）模式的稳定性而言，可以对个体组进行正式比较。通过这种方法可以对不同人群生长结果的可预测性进行相对评估。此外，当数据不与卡方的共同值相矛盾时，还展示了一种估计该值并获得其置信区间的方法。描述并提供了一个用于执行该程序的菜单驱动的GAUSS程序。用危地马拉儿童的三个样本对该方法和程序进行了说明。© 1992威利 - 利斯公司。
