  In this paper, we obtain a measure of inaccuracy between rth concomitant of
generalized order statistic and the parent random variable in Morgenstern
family. Applications of this result are given for concomitants of order
statistics and record values. We also study some results of cumulative past
inaccuracy (CPI) between the distribution function of rth concomitant of order
statistic (record value) and the distribution function of parent random
variable. Finally, we discuss on a problem of estimating the CPI by means of
the empirical CPI in concomitants of generalized order statistics.
