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On a form of Spurious Selection which may arise when Mortality Tables are amalgamated

Published online by Cambridge University Press:  18 August 2016

W. Palin Elderton
W. Palin Elderton
Affiliation:
Guardian Assurance Company
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Extract

It is probable that some of the points I venture to bring forward have already suggested themselves to other students, but in view of the interest at present attaching to selection, it seems an opportune time for putting forward any considerations that may help to throw light on a somewhat complicated subject.

Type
Research Article
Information
Journal of the Institute of Actuaries , Volume 40 , Issue 3 , July 1906 , pp. 221 - 246
Copyright
Copyright © Institute and Faculty of Actuaries 1906

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References

page 221 note * The term “Spurious Selection”, which is used throughout the present paper in the technical sense indicated, was suggested by the “spurious correlation” of statistical work (See , Pearson, Proc. Roy. Soc, 1x, pp. 489–498).Google Scholar

page 224 note * A further amount of spurious selection is introduced by the “existing,” see pp. 228 and 229.

page 224 ntoe † Obtained from the table on p. 478 of Whole-Life Unadjusted Experience.

page 226 note * See p. 310.

page 226 note † It is interesting to note that the use of nearest age at entry has a slight effect on select mortality and after attained age 35 tends to exaggerate the selection. The error is, however, extremely small; it only affects the fifth place i n qx when five years of age are grouped together as in the table on p. 478 of the whole-life experience.