Korey K A
Am J Phys Anthropol. 1980 Jul;53(1):123-8. doi: 10.1002/ajpa.1330530116.
Several techniques for using skin colorimetric data to measure admixture contributions to a hybrid population have been reviewed by Lees and Relethford ('78), who find this general approach to be useful. This paper extends their evaluation, providing a method for obtaining an error term and considering at greater length certain potential sources of estimate bias. Questions are raised about their discussion of the appropriate employment of distance statistics in this context, and an alternative procedure for obtaining a single estimate of admixture proportions jointly over all reflectance measurements is offered. While it is shown that the hybrid reflectance curves do not support entirely an assumption of unlinked foci contributing equally and additively to skin color, preliminary findings indicate that admixture estimates made from these data are apparently unbiased and reasonably efficient.
利斯和雷尔思福德（1978年）回顾了几种利用肤色比色数据来测量杂交群体中混合成分贡献的技术，他们发现这种一般方法很有用。本文扩展了他们的评估，提供了一种获得误差项的方法，并更详细地考虑了某些估计偏差的潜在来源。有人对他们在这种情况下关于距离统计的适当应用的讨论提出了疑问，并提供了一种替代程序，用于在所有反射率测量中联合获得混合比例的单一估计。虽然结果表明杂交反射率曲线并不完全支持这样一种假设，即不连锁的基因座对肤色有同等和累加的贡献，但初步研究结果表明，从这些数据得出的混合估计显然是无偏的，并且相当有效。
