Box proposed an empirical procedure, called thelambda plot, to search for a simplifying transformation in the context of replicated orthogonal experiments. This paper shows that, by appropriately scaling the factor effects, thelambda plotprocedure can be extended to unreplicated situations and illustrates its use on four published data sets. The scaling technique proposed can be used also to construct a simple graphical summary of the analysis of multiresponse orthogonal experiments with two-level factors. This is illustrated using data obtained from a pigment production process.