deffH: Henry design effect for _pps_ sampling and GREG estimation of...

View source: R/deffH.R

deffHR Documentation

Henry design effect for pps sampling and GREG estimation of totals


Compute the Henry design effect for single-stage samples when a general regression estimator is used for a total.


deffH(w, y, x)



vector of inverses of selection probabilities for a sample


vector of the sample values of an analysis variable


matrix of covariates used to construct a GREG estimator of the total of y. This matrix does not include the intercept.


The Henry design effect is the ratio of the variance of the general regression (GREG) estimator of a total of y to the variance of the estimated total in srswr. Calculations for the Henry deff are done as if the sample is selected in a single-stage and with replacement. Varying selection probabilities can be used. The model for the GREG is assumed to be y = α + β x + ε, i.e., the model has an intercept.


numeric design effect


Richard Valliant, Jill A. Dever, Frauke Kreuter


Henry, K.A., and Valliant, R. (2015). A Design Effect Measure for Calibration Weighting in Single-stage Samples. Survey Methodology, 41, 315-331.

Valliant, R., Dever, J., Kreuter, F. (2018, chap. 14). Practical Tools for Designing and Weighting Survey Samples, 2nd edition. New York: Springer.

See Also

deff, deffCR, deffK, deffS


    # generate population using HMT function
pop.dat <-
mos <- pop.dat$x
pop.dat$prbs.1d <- mos / sum(mos)
    # select pps sample
n <- 80
pk <- n * pop.dat$prbs.1d
sam <- UPrandomsystematic(pk)
sam <- sam==1
sam.dat <- pop.dat[sam, ]
dsgn.wts <- 1/pk[sam]
deffH(w=dsgn.wts, y=sam.dat$y, x=sam.dat$x)

PracTools documentation built on Aug. 17, 2022, 5:06 p.m.