The purpose of the study is to test methods concerning construction of cause-eliminated life tables with respect to calculating the value of and to adjusting the value of . Comparing the “actuarial” method suggested by Chiang and Greville with the “interaction” method suggested by Krall and Hickman, we find that selection of the method of obtaining is not trival. Alternative methods yield substantially different result. It is also found that the procedure for adjusting affects the value of and consequently gain in life expectancy at birth. These two methodological problems are not unrelated. If some adjustment is needed to make gains in life expectancy seem more reasonable, then it seems more appropriate to consider a method which will affect values of functions throughout the life table rather than a single value. The interaction method of calculation seems to have promise as such a procedure. This study, however, suggests need for further research to minimize arbitrariness in procedures of calculating life table values.