Journal of Applied Sciences1812-56541812-5662Asian Network for Scientific Information10.3923/jas.2014.2516.2522PatummasutMena BorkowskiJohn J. 1220141420This study proposed the use of adaptively adding secondary
units in adaptive cluster sampling when the primary units are formed by a spatial
cluster of secondary units. Adaptive cluster sampling with this recommended
approach of adaptively adding units is called adaptive cluster sampling with
spatially clustered secondary units. The purpose of adaptive cluster sampling
with spatially clustered secondary units is to provide efficient estimators
and to save time and cost of travelling and observing units in the sample. For
this sampling design, each primary unit is divided into four secondary units.
An initial sample of primary units is selected and then secondary units are
adaptively added to the sample instead of neighboring primary units. This study
offers an unbiased estimator of the mean and its variance and shows the advantages
and disadvantages of adaptive cluster sampling with spatially clustered secondary
units in comparison to the ordinary adaptive cluster sampling based on a simple
random sample.]]>Borkowski, J.J.,200332215237Brown, J.A.,20031095105Christman, M.C.,19978145166Dryver, A.L. and S.K. Thompson,200567157166Dryver, A.L. and C.T. Chao,200718607620Goldberg, N.A., J.N. Heine and J.A. Brown,200715113431348He, Q. and N. Shifa,201333942Horvitz, D.G. and D.J. Thompson,195247663685Lucas, H.A. and G.A.F. Seber,197764618622Mohammadi, M. and M.M. Salehi,201238333347Patummasut, M. and A.L. Dryver,20121213551363Smith, D.R., M.J. Conroy and D.H. Brakhage,199551777788Thompson, S.K.,19908510501059Thompson, S.K.,19914711031115Thompson, S.K.,20066212241234Thompson, S.K. and G.A.F. Seber,1996Pages: 265Pages: 265Turk, P. and J.J. Borkowski,2005125594