Trinca, L. A.Gilmour, S. G.2014-05-202014-05-201998-10-01Journal of Quality Technology. Milwaukee: Amer Soc Quality Control-asqc, v. 30, n. 4, p. 314-327, 1998.0022-4065http://hdl.handle.net/11449/17023In this paper, we extend the use of the variance dispersion graph (VDG) to experiments in which the response surface (RS) design must be blocked. Through several examples we evaluate the prediction performances of RS designs in non-orthogonal block designs compared with the equivalent unblocked designs and orthogonally blocked designs. These examples illustrate that good prediction performance of designs in small blocks can be expected in practice. Most importantly, we show that the allocation of the treatment set to blocks can seriously affect the prediction properties of designs; thus, much care is needed in performing this allocation.314-327engblockingBox-Behnken designscentral composite designsD-optimalitypredictionArtigoWOS:000076695500002Acesso restrito3720489366427955