This paper proposes a data reduction and hypothesis testing methodology tha
t can be used to perform hypothesis testing with data commonly collected in
benchmarking studies. A reduced-form performance vector and reduced-form s
et of decision variables are constructed using the multivariate data reduct
ion techniques of principal component analysis and exploratory factor analy
sis. Reductions in dependent and exogenous variables increase the available
degrees of freedom, thereby facilitating the use of standard regression te
chniques. We demonstrate the methodology with data from a semiconductor pro
duction benchmarking study.